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Finding the Fourth Proportional to 8,158.56, 12,237.84 and 2,315.68

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Solution

The fourth proportional to 8,158.56, 12,237.84 and 2,315.68 is: 3,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.56 : 12,237.84 = 2,315.68 : x
  2. Step 2: Convert to fraction form
    8,158.56/12,237.84 = 2,315.68/x
  3. Step 3: Cross multiply
    8,158.56x = 12,237.84 × 2,315.68
  4. Step 4: Simplify right side
    8,158.56x = 28,338,921.33
  5. Step 5: Solve for x
    x = 28,338,921.33/8,158.56
  6. Step 6: Final answer
    x = 3,473.52

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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.