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Finding the Fourth Proportional to 8,615.32, 12,922.98 and 2,375.38

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Solution

The fourth proportional to 8,615.32, 12,922.98 and 2,375.38 is: 3,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.32 : 12,922.98 = 2,375.38 : x
  2. Step 2: Convert to fraction form
    8,615.32/12,922.98 = 2,375.38/x
  3. Step 3: Cross multiply
    8,615.32x = 12,922.98 × 2,375.38
  4. Step 4: Simplify right side
    8,615.32x = 30,696,988.23
  5. Step 5: Solve for x
    x = 30,696,988.23/8,615.32
  6. Step 6: Final answer
    x = 3,563.07

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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.