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Finding the Fourth Proportional to 8,737.78, 12,057.82 and 4,758.88

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Solution

The fourth proportional to 8,737.78, 12,057.82 and 4,758.88 is: 6,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.78 : 12,057.82 = 4,758.88 : x
  2. Step 2: Convert to fraction form
    8,737.78/12,057.82 = 4,758.88/x
  3. Step 3: Cross multiply
    8,737.78x = 12,057.82 × 4,758.88
  4. Step 4: Simplify right side
    8,737.78x = 57,381,718.44
  5. Step 5: Solve for x
    x = 57,381,718.44/8,737.78
  6. Step 6: Final answer
    x = 6,567.08

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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.