Home / 10,167.80-15,250.13-2,772.85

Finding the Fourth Proportional to 10,167.80, 15,250.13 and 2,772.85

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Solution

The fourth proportional to 10,167.80, 15,250.13 and 2,772.85 is: 4,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,167.80 : 15,250.13 = 2,772.85 : x
  2. Step 2: Convert to fraction form
    10,167.80/15,250.13 = 2,772.85/x
  3. Step 3: Cross multiply
    10,167.80x = 15,250.13 × 2,772.85
  4. Step 4: Simplify right side
    10,167.80x = 42,286,322.97
  5. Step 5: Solve for x
    x = 42,286,322.97/10,167.80
  6. Step 6: Final answer
    x = 4,158.85

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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.