Home / 16,285.20-22,470.80-9,211.44

Finding the Fourth Proportional to 16,285.20, 22,470.80 and 9,211.44

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Solution

The fourth proportional to 16,285.20, 22,470.80 and 9,211.44 is: 12,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,285.20 : 22,470.80 = 9,211.44 : x
  2. Step 2: Convert to fraction form
    16,285.20/22,470.80 = 9,211.44/x
  3. Step 3: Cross multiply
    16,285.20x = 22,470.80 × 9,211.44
  4. Step 4: Simplify right side
    16,285.20x = 206,988,425.95
  5. Step 5: Solve for x
    x = 206,988,425.95/16,285.20
  6. Step 6: Final answer
    x = 12,710.22

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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.