Home / 15,272.80-22,901.10-5,412.40

Finding the Fourth Proportional to 15,272.80, 22,901.10 and 5,412.40

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Solution

The fourth proportional to 15,272.80, 22,901.10 and 5,412.40 is: 8,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.80 : 22,901.10 = 5,412.40 : x
  2. Step 2: Convert to fraction form
    15,272.80/22,901.10 = 5,412.40/x
  3. Step 3: Cross multiply
    15,272.80x = 22,901.10 × 5,412.40
  4. Step 4: Simplify right side
    15,272.80x = 123,949,913.64
  5. Step 5: Solve for x
    x = 123,949,913.64/15,272.80
  6. Step 6: Final answer
    x = 8,115.73

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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.