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Finding the Fourth Proportional to 10,882.88, 15,018.98 and 6,168.68

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Solution

The fourth proportional to 10,882.88, 15,018.98 and 6,168.68 is: 8,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,882.88 : 15,018.98 = 6,168.68 : x
  2. Step 2: Convert to fraction form
    10,882.88/15,018.98 = 6,168.68/x
  3. Step 3: Cross multiply
    10,882.88x = 15,018.98 × 6,168.68
  4. Step 4: Simplify right side
    10,882.88x = 92,647,281.55
  5. Step 5: Solve for x
    x = 92,647,281.55/10,882.88
  6. Step 6: Final answer
    x = 8,513.12

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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.