Home / 15,404.82-21,258.56-8,331.23

Finding the Fourth Proportional to 15,404.82, 21,258.56 and 8,331.23

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Solution

The fourth proportional to 15,404.82, 21,258.56 and 8,331.23 is: 11,497.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.82 : 21,258.56 = 8,331.23 : x
  2. Step 2: Convert to fraction form
    15,404.82/21,258.56 = 8,331.23/x
  3. Step 3: Cross multiply
    15,404.82x = 21,258.56 × 8,331.23
  4. Step 4: Simplify right side
    15,404.82x = 177,109,804.88
  5. Step 5: Solve for x
    x = 177,109,804.88/15,404.82
  6. Step 6: Final answer
    x = 11,497.04

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Half scale
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Double scale
Find fourth proportional to 15,405.82, 21,259.93 and 8,332.23
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.