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Finding the Fourth Proportional to 8,265.93, 12,398.90 and 2,422.55

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Solution

The fourth proportional to 8,265.93, 12,398.90 and 2,422.55 is: 3,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.93 : 12,398.90 = 2,422.55 : x
  2. Step 2: Convert to fraction form
    8,265.93/12,398.90 = 2,422.55/x
  3. Step 3: Cross multiply
    8,265.93x = 12,398.90 × 2,422.55
  4. Step 4: Simplify right side
    8,265.93x = 30,036,881.09
  5. Step 5: Solve for x
    x = 30,036,881.09/8,265.93
  6. Step 6: Final answer
    x = 3,633.82

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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.