Home / 10,251.49-15,377.84-3,231.72

Finding the Fourth Proportional to 10,251.49, 15,377.84 and 3,231.72

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Solution

The fourth proportional to 10,251.49, 15,377.84 and 3,231.72 is: 4,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.49 : 15,377.84 = 3,231.72 : x
  2. Step 2: Convert to fraction form
    10,251.49/15,377.84 = 3,231.72/x
  3. Step 3: Cross multiply
    10,251.49x = 15,377.84 × 3,231.72
  4. Step 4: Simplify right side
    10,251.49x = 49,696,926.71
  5. Step 5: Solve for x
    x = 49,696,926.71/10,251.49
  6. Step 6: Final answer
    x = 4,847.78

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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.