Home / 9,127.90-12,596.09-5,149.38

Finding the Fourth Proportional to 9,127.90, 12,596.09 and 5,149.38

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Solution

The fourth proportional to 9,127.90, 12,596.09 and 5,149.38 is: 7,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.90 : 12,596.09 = 5,149.38 : x
  2. Step 2: Convert to fraction form
    9,127.90/12,596.09 = 5,149.38/x
  3. Step 3: Cross multiply
    9,127.90x = 12,596.09 × 5,149.38
  4. Step 4: Simplify right side
    9,127.90x = 64,862,053.92
  5. Step 5: Solve for x
    x = 64,862,053.92/9,127.90
  6. Step 6: Final answer
    x = 7,105.91

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Half scale
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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.