Home / 11,513.20-17,269.80-7,616.70

Finding the Fourth Proportional to 11,513.20, 17,269.80 and 7,616.70

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Solution

The fourth proportional to 11,513.20, 17,269.80 and 7,616.70 is: 11,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.20 : 17,269.80 = 7,616.70 : x
  2. Step 2: Convert to fraction form
    11,513.20/17,269.80 = 7,616.70/x
  3. Step 3: Cross multiply
    11,513.20x = 17,269.80 × 7,616.70
  4. Step 4: Simplify right side
    11,513.20x = 131,538,885.66
  5. Step 5: Solve for x
    x = 131,538,885.66/11,513.20
  6. Step 6: Final answer
    x = 11,425.05

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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.