Home / 15,470.25-21,346.47-8,753.73

Finding the Fourth Proportional to 15,470.25, 21,346.47 and 8,753.73

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Solution

The fourth proportional to 15,470.25, 21,346.47 and 8,753.73 is: 12,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.25 : 21,346.47 = 8,753.73 : x
  2. Step 2: Convert to fraction form
    15,470.25/21,346.47 = 8,753.73/x
  3. Step 3: Cross multiply
    15,470.25x = 21,346.47 × 8,753.73
  4. Step 4: Simplify right side
    15,470.25x = 186,861,234.83
  5. Step 5: Solve for x
    x = 186,861,234.83/15,470.25
  6. Step 6: Final answer
    x = 12,078.75

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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.