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Finding the Fourth Proportional to 8,331.30, 12,496.95 and 7,424.10

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Solution

The fourth proportional to 8,331.30, 12,496.95 and 7,424.10 is: 11,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.30 : 12,496.95 = 7,424.10 : x
  2. Step 2: Convert to fraction form
    8,331.30/12,496.95 = 7,424.10/x
  3. Step 3: Cross multiply
    8,331.30x = 12,496.95 × 7,424.10
  4. Step 4: Simplify right side
    8,331.30x = 92,778,606.50
  5. Step 5: Solve for x
    x = 92,778,606.50/8,331.30
  6. Step 6: Final answer
    x = 11,136.15

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Similar ratio
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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.