Home / 14,675.28-20,251.46-8,387.64

Finding the Fourth Proportional to 14,675.28, 20,251.46 and 8,387.64

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Solution

The fourth proportional to 14,675.28, 20,251.46 and 8,387.64 is: 11,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,675.28 : 20,251.46 = 8,387.64 : x
  2. Step 2: Convert to fraction form
    14,675.28/20,251.46 = 8,387.64/x
  3. Step 3: Cross multiply
    14,675.28x = 20,251.46 × 8,387.64
  4. Step 4: Simplify right side
    14,675.28x = 169,861,955.95
  5. Step 5: Solve for x
    x = 169,861,955.95/14,675.28
  6. Step 6: Final answer
    x = 11,574.70

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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.