Home / 12,217.88-16,861.02-7,436.36

Finding the Fourth Proportional to 12,217.88, 16,861.02 and 7,436.36

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Solution

The fourth proportional to 12,217.88, 16,861.02 and 7,436.36 is: 10,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.88 : 16,861.02 = 7,436.36 : x
  2. Step 2: Convert to fraction form
    12,217.88/16,861.02 = 7,436.36/x
  3. Step 3: Cross multiply
    12,217.88x = 16,861.02 × 7,436.36
  4. Step 4: Simplify right side
    12,217.88x = 125,384,614.69
  5. Step 5: Solve for x
    x = 125,384,614.69/12,217.88
  6. Step 6: Final answer
    x = 10,262.39

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Half scale
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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.