Home / 15,128.79-22,691.35-5,267.24

Finding the Fourth Proportional to 15,128.79, 22,691.35 and 5,267.24

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Solution

The fourth proportional to 15,128.79, 22,691.35 and 5,267.24 is: 7,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.79 : 22,691.35 = 5,267.24 : x
  2. Step 2: Convert to fraction form
    15,128.79/22,691.35 = 5,267.24/x
  3. Step 3: Cross multiply
    15,128.79x = 22,691.35 × 5,267.24
  4. Step 4: Simplify right side
    15,128.79x = 119,520,786.37
  5. Step 5: Solve for x
    x = 119,520,786.37/15,128.79
  6. Step 6: Final answer
    x = 7,900.22

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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.