Home / 18,469.31-25,487.30-10,511.38

Finding the Fourth Proportional to 18,469.31, 25,487.30 and 10,511.38

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Solution

The fourth proportional to 18,469.31, 25,487.30 and 10,511.38 is: 14,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469.31 : 25,487.30 = 10,511.38 : x
  2. Step 2: Convert to fraction form
    18,469.31/25,487.30 = 10,511.38/x
  3. Step 3: Cross multiply
    18,469.31x = 25,487.30 × 10,511.38
  4. Step 4: Simplify right side
    18,469.31x = 267,906,515.48
  5. Step 5: Solve for x
    x = 267,906,515.48/18,469.31
  6. Step 6: Final answer
    x = 14,505.50

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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.