Home / 15,470.73-21,350.05-8,397.61

Finding the Fourth Proportional to 15,470.73, 21,350.05 and 8,397.61

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Solution

The fourth proportional to 15,470.73, 21,350.05 and 8,397.61 is: 11,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.73 : 21,350.05 = 8,397.61 : x
  2. Step 2: Convert to fraction form
    15,470.73/21,350.05 = 8,397.61/x
  3. Step 3: Cross multiply
    15,470.73x = 21,350.05 × 8,397.61
  4. Step 4: Simplify right side
    15,470.73x = 179,289,319.01
  5. Step 5: Solve for x
    x = 179,289,319.01/15,470.73
  6. Step 6: Final answer
    x = 11,588.94

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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.