Home / 15,139.25-22,709.71-5,780.03

Finding the Fourth Proportional to 15,139.25, 22,709.71 and 5,780.03

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Solution

The fourth proportional to 15,139.25, 22,709.71 and 5,780.03 is: 8,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.25 : 22,709.71 = 5,780.03 : x
  2. Step 2: Convert to fraction form
    15,139.25/22,709.71 = 5,780.03/x
  3. Step 3: Cross multiply
    15,139.25x = 22,709.71 × 5,780.03
  4. Step 4: Simplify right side
    15,139.25x = 131,262,691.54
  5. Step 5: Solve for x
    x = 131,262,691.54/15,139.25
  6. Step 6: Final answer
    x = 8,670.36

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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.