Home / 12,550.38-17,319.59-6,885.65

Finding the Fourth Proportional to 12,550.38, 17,319.59 and 6,885.65

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Solution

The fourth proportional to 12,550.38, 17,319.59 and 6,885.65 is: 9,502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.38 : 17,319.59 = 6,885.65 : x
  2. Step 2: Convert to fraction form
    12,550.38/17,319.59 = 6,885.65/x
  3. Step 3: Cross multiply
    12,550.38x = 17,319.59 × 6,885.65
  4. Step 4: Simplify right side
    12,550.38x = 119,256,634.88
  5. Step 5: Solve for x
    x = 119,256,634.88/12,550.38
  6. Step 6: Final answer
    x = 9,502.23

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Double 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.