Home / 12,601.26-17,390.16-9,079.38

Finding the Fourth Proportional to 12,601.26, 17,390.16 and 9,079.38

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Solution

The fourth proportional to 12,601.26, 17,390.16 and 9,079.38 is: 12,529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.26 : 17,390.16 = 9,079.38 : x
  2. Step 2: Convert to fraction form
    12,601.26/17,390.16 = 9,079.38/x
  3. Step 3: Cross multiply
    12,601.26x = 17,390.16 × 9,079.38
  4. Step 4: Simplify right side
    12,601.26x = 157,891,870.90
  5. Step 5: Solve for x
    x = 157,891,870.90/12,601.26
  6. Step 6: Final answer
    x = 12,529.85

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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.