Home / 11,693.08-16,136.24-6,387.76

Finding the Fourth Proportional to 11,693.08, 16,136.24 and 6,387.76

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Solution

The fourth proportional to 11,693.08, 16,136.24 and 6,387.76 is: 8,814.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.08 : 16,136.24 = 6,387.76 : x
  2. Step 2: Convert to fraction form
    11,693.08/16,136.24 = 6,387.76/x
  3. Step 3: Cross multiply
    11,693.08x = 16,136.24 × 6,387.76
  4. Step 4: Simplify right side
    11,693.08x = 103,074,428.42
  5. Step 5: Solve for x
    x = 103,074,428.42/11,693.08
  6. Step 6: Final answer
    x = 8,814.99

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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.