Home / 12,461.96-17,193.20-7,988.18

Finding the Fourth Proportional to 12,461.96, 17,193.20 and 7,988.18

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Solution

The fourth proportional to 12,461.96, 17,193.20 and 7,988.18 is: 11,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.96 : 17,193.20 = 7,988.18 : x
  2. Step 2: Convert to fraction form
    12,461.96/17,193.20 = 7,988.18/x
  3. Step 3: Cross multiply
    12,461.96x = 17,193.20 × 7,988.18
  4. Step 4: Simplify right side
    12,461.96x = 137,342,310.38
  5. Step 5: Solve for x
    x = 137,342,310.38/12,461.96
  6. Step 6: Final answer
    x = 11,020.92

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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.