Home / 12,474.28-18,711.40-4,577.16

Finding the Fourth Proportional to 12,474.28, 18,711.40 and 4,577.16

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Solution

The fourth proportional to 12,474.28, 18,711.40 and 4,577.16 is: 6,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.28 : 18,711.40 = 4,577.16 : x
  2. Step 2: Convert to fraction form
    12,474.28/18,711.40 = 4,577.16/x
  3. Step 3: Cross multiply
    12,474.28x = 18,711.40 × 4,577.16
  4. Step 4: Simplify right side
    12,474.28x = 85,645,071.62
  5. Step 5: Solve for x
    x = 85,645,071.62/12,474.28
  6. Step 6: Final answer
    x = 6,865.73

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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.