Home / 14,491.38-19,998.85-8,117.59

Finding the Fourth Proportional to 14,491.38, 19,998.85 and 8,117.59

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Solution

The fourth proportional to 14,491.38, 19,998.85 and 8,117.59 is: 11,202.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.38 : 19,998.85 = 8,117.59 : x
  2. Step 2: Convert to fraction form
    14,491.38/19,998.85 = 8,117.59/x
  3. Step 3: Cross multiply
    14,491.38x = 19,998.85 × 8,117.59
  4. Step 4: Simplify right side
    14,491.38x = 162,342,394.48
  5. Step 5: Solve for x
    x = 162,342,394.48/14,491.38
  6. Step 6: Final answer
    x = 11,202.69

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Half scale
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Double scale
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Similar ratio
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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.