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Finding the Fourth Proportional to 8,369.68, 12,557.76 and 4,902.88

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Solution

The fourth proportional to 8,369.68, 12,557.76 and 4,902.88 is: 7,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.68 : 12,557.76 = 4,902.88 : x
  2. Step 2: Convert to fraction form
    8,369.68/12,557.76 = 4,902.88/x
  3. Step 3: Cross multiply
    8,369.68x = 12,557.76 × 4,902.88
  4. Step 4: Simplify right side
    8,369.68x = 61,569,190.35
  5. Step 5: Solve for x
    x = 61,569,190.35/8,369.68
  6. Step 6: Final answer
    x = 7,356.22

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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.