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Finding the Fourth Proportional to 11,008.80, 16,517.04 and 4,686.88

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Solution

The fourth proportional to 11,008.80, 16,517.04 and 4,686.88 is: 7,031.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.80 : 16,517.04 = 4,686.88 : x
  2. Step 2: Convert to fraction form
    11,008.80/16,517.04 = 4,686.88/x
  3. Step 3: Cross multiply
    11,008.80x = 16,517.04 × 4,686.88
  4. Step 4: Simplify right side
    11,008.80x = 77,413,384.44
  5. Step 5: Solve for x
    x = 77,413,384.44/11,008.80
  6. Step 6: Final answer
    x = 7,031.95

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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.