Home / 10,127.52-15,169.41-9,879.66

Finding the Fourth Proportional to 10,127.52, 15,169.41 and 9,879.66

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Solution

The fourth proportional to 10,127.52, 15,169.41 and 9,879.66 is: 14,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.52 : 15,169.41 = 9,879.66 : x
  2. Step 2: Convert to fraction form
    10,127.52/15,169.41 = 9,879.66/x
  3. Step 3: Cross multiply
    10,127.52x = 15,169.41 × 9,879.66
  4. Step 4: Simplify right side
    10,127.52x = 149,868,613.20
  5. Step 5: Solve for x
    x = 149,868,613.20/10,127.52
  6. Step 6: Final answer
    x = 14,798.16

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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.