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Finding the Fourth Proportional to 8,655.66, 12,983.49 and 5,579.82

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Solution

The fourth proportional to 8,655.66, 12,983.49 and 5,579.82 is: 8,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.66 : 12,983.49 = 5,579.82 : x
  2. Step 2: Convert to fraction form
    8,655.66/12,983.49 = 5,579.82/x
  3. Step 3: Cross multiply
    8,655.66x = 12,983.49 × 5,579.82
  4. Step 4: Simplify right side
    8,655.66x = 72,445,537.17
  5. Step 5: Solve for x
    x = 72,445,537.17/8,655.66
  6. Step 6: Final answer
    x = 8,369.73

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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.