Home / 15,128.02-22,708.37-11,470.20

Finding the Fourth Proportional to 15,128.02, 22,708.37 and 11,470.20

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Solution

The fourth proportional to 15,128.02, 22,708.37 and 11,470.20 is: 17,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.02 : 22,708.37 = 11,470.20 : x
  2. Step 2: Convert to fraction form
    15,128.02/22,708.37 = 11,470.20/x
  3. Step 3: Cross multiply
    15,128.02x = 22,708.37 × 11,470.20
  4. Step 4: Simplify right side
    15,128.02x = 260,469,545.57
  5. Step 5: Solve for x
    x = 260,469,545.57/15,128.02
  6. Step 6: Final answer
    x = 17,217.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.