Home / 14,679.88-20,251.62-8,711.80

Finding the Fourth Proportional to 14,679.88, 20,251.62 and 8,711.80

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Solution

The fourth proportional to 14,679.88, 20,251.62 and 8,711.80 is: 12,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.88 : 20,251.62 = 8,711.80 : x
  2. Step 2: Convert to fraction form
    14,679.88/20,251.62 = 8,711.80/x
  3. Step 3: Cross multiply
    14,679.88x = 20,251.62 × 8,711.80
  4. Step 4: Simplify right side
    14,679.88x = 176,428,063.12
  5. Step 5: Solve for x
    x = 176,428,063.12/14,679.88
  6. Step 6: Final answer
    x = 12,018.36

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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.