Home / 7,515.61-11,275.20-2,251.06

Finding the Fourth Proportional to 7,515.61, 11,275.20 and 2,251.06

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Solution

The fourth proportional to 7,515.61, 11,275.20 and 2,251.06 is: 3,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.61 : 11,275.20 = 2,251.06 : x
  2. Step 2: Convert to fraction form
    7,515.61/11,275.20 = 2,251.06/x
  3. Step 3: Cross multiply
    7,515.61x = 11,275.20 × 2,251.06
  4. Step 4: Simplify right side
    7,515.61x = 25,381,123.52
  5. Step 5: Solve for x
    x = 25,381,123.52/7,515.61
  6. Step 6: Final answer
    x = 3,377.12

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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.