Home / 15,221.38-22,799.70-7,312.28

Finding the Fourth Proportional to 15,221.38, 22,799.70 and 7,312.28

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Solution

The fourth proportional to 15,221.38, 22,799.70 and 7,312.28 is: 10,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,221.38 : 22,799.70 = 7,312.28 : x
  2. Step 2: Convert to fraction form
    15,221.38/22,799.70 = 7,312.28/x
  3. Step 3: Cross multiply
    15,221.38x = 22,799.70 × 7,312.28
  4. Step 4: Simplify right side
    15,221.38x = 166,717,790.32
  5. Step 5: Solve for x
    x = 166,717,790.32/15,221.38
  6. Step 6: Final answer
    x = 10,952.87

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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.