Home / 9,169.38-13,737.92-6,390.68

Finding the Fourth Proportional to 9,169.38, 13,737.92 and 6,390.68

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Solution

The fourth proportional to 9,169.38, 13,737.92 and 6,390.68 is: 9,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.38 : 13,737.92 = 6,390.68 : x
  2. Step 2: Convert to fraction form
    9,169.38/13,737.92 = 6,390.68/x
  3. Step 3: Cross multiply
    9,169.38x = 13,737.92 × 6,390.68
  4. Step 4: Simplify right side
    9,169.38x = 87,794,549.94
  5. Step 5: Solve for x
    x = 87,794,549.94/9,169.38
  6. Step 6: Final answer
    x = 9,574.75

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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.