Home / 16,761.50-23,129.13-9,690.18

Finding the Fourth Proportional to 16,761.50, 23,129.13 and 9,690.18

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Solution

The fourth proportional to 16,761.50, 23,129.13 and 9,690.18 is: 13,371.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.50 : 23,129.13 = 9,690.18 : x
  2. Step 2: Convert to fraction form
    16,761.50/23,129.13 = 9,690.18/x
  3. Step 3: Cross multiply
    16,761.50x = 23,129.13 × 9,690.18
  4. Step 4: Simplify right side
    16,761.50x = 224,125,432.94
  5. Step 5: Solve for x
    x = 224,125,432.94/16,761.50
  6. Step 6: Final answer
    x = 13,371.44

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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.