Home / 15,213.29-20,994.38-8,499.17

Finding the Fourth Proportional to 15,213.29, 20,994.38 and 8,499.17

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Solution

The fourth proportional to 15,213.29, 20,994.38 and 8,499.17 is: 11,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.29 : 20,994.38 = 8,499.17 : x
  2. Step 2: Convert to fraction form
    15,213.29/20,994.38 = 8,499.17/x
  3. Step 3: Cross multiply
    15,213.29x = 20,994.38 × 8,499.17
  4. Step 4: Simplify right side
    15,213.29x = 178,434,657.20
  5. Step 5: Solve for x
    x = 178,434,657.20/15,213.29
  6. Step 6: Final answer
    x = 11,728.87

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Double scale
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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.