Home / 15,761.31-23,643.57-9,105.29

Finding the Fourth Proportional to 15,761.31, 23,643.57 and 9,105.29

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Solution

The fourth proportional to 15,761.31, 23,643.57 and 9,105.29 is: 13,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.31 : 23,643.57 = 9,105.29 : x
  2. Step 2: Convert to fraction form
    15,761.31/23,643.57 = 9,105.29/x
  3. Step 3: Cross multiply
    15,761.31x = 23,643.57 × 9,105.29
  4. Step 4: Simplify right side
    15,761.31x = 215,281,473.97
  5. Step 5: Solve for x
    x = 215,281,473.97/15,761.31
  6. Step 6: Final answer
    x = 13,658.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.