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Finding the Fourth Proportional to 8,885.68, 12,253.03 and 7,630.88

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Solution

The fourth proportional to 8,885.68, 12,253.03 and 7,630.88 is: 10,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.68 : 12,253.03 = 7,630.88 : x
  2. Step 2: Convert to fraction form
    8,885.68/12,253.03 = 7,630.88/x
  3. Step 3: Cross multiply
    8,885.68x = 12,253.03 × 7,630.88
  4. Step 4: Simplify right side
    8,885.68x = 93,501,413.12
  5. Step 5: Solve for x
    x = 93,501,413.12/8,885.68
  6. Step 6: Final answer
    x = 10,522.71

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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.