Home / 15,505.11-21,397.62-8,882.39

Finding the Fourth Proportional to 15,505.11, 21,397.62 and 8,882.39

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Solution

The fourth proportional to 15,505.11, 21,397.62 and 8,882.39 is: 12,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,505.11 : 21,397.62 = 8,882.39 : x
  2. Step 2: Convert to fraction form
    15,505.11/21,397.62 = 8,882.39/x
  3. Step 3: Cross multiply
    15,505.11x = 21,397.62 × 8,882.39
  4. Step 4: Simplify right side
    15,505.11x = 190,061,961.50
  5. Step 5: Solve for x
    x = 190,061,961.50/15,505.11
  6. Step 6: Final answer
    x = 12,258.02

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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.