Home / 15,470.48-21,347.16-9,179.12

Finding the Fourth Proportional to 15,470.48, 21,347.16 and 9,179.12

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Solution

The fourth proportional to 15,470.48, 21,347.16 and 9,179.12 is: 12,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.48 : 21,347.16 = 9,179.12 : x
  2. Step 2: Convert to fraction form
    15,470.48/21,347.16 = 9,179.12/x
  3. Step 3: Cross multiply
    15,470.48x = 21,347.16 × 9,179.12
  4. Step 4: Simplify right side
    15,470.48x = 195,948,143.30
  5. Step 5: Solve for x
    x = 195,948,143.30/15,470.48
  6. Step 6: Final answer
    x = 12,665.94

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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.