Home / 15,410.76-21,266.85-8,337.16

Finding the Fourth Proportional to 15,410.76, 21,266.85 and 8,337.16

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Solution

The fourth proportional to 15,410.76, 21,266.85 and 8,337.16 is: 11,505.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.76 : 21,266.85 = 8,337.16 : x
  2. Step 2: Convert to fraction form
    15,410.76/21,266.85 = 8,337.16/x
  3. Step 3: Cross multiply
    15,410.76x = 21,266.85 × 8,337.16
  4. Step 4: Simplify right side
    15,410.76x = 177,305,188.99
  5. Step 5: Solve for x
    x = 177,305,188.99/15,410.76
  6. Step 6: Final answer
    x = 11,505.29

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Find fourth proportional to 7,705.38, 10,633.43 and 4,168.58
Half scale
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Double scale
Find fourth proportional to 15,411.76, 21,268.23 and 8,338.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.