Home / 15,129.78-22,697.74-5,269.82

Finding the Fourth Proportional to 15,129.78, 22,697.74 and 5,269.82

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Solution

The fourth proportional to 15,129.78, 22,697.74 and 5,269.82 is: 7,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.78 : 22,697.74 = 5,269.82 : x
  2. Step 2: Convert to fraction form
    15,129.78/22,697.74 = 5,269.82/x
  3. Step 3: Cross multiply
    15,129.78x = 22,697.74 × 5,269.82
  4. Step 4: Simplify right side
    15,129.78x = 119,613,067.54
  5. Step 5: Solve for x
    x = 119,613,067.54/15,129.78
  6. Step 6: Final answer
    x = 7,905.81

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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.