Home / 19,134.78-28,669.14-10,375.80

Finding the Fourth Proportional to 19,134.78, 28,669.14 and 10,375.80

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Solution

The fourth proportional to 19,134.78, 28,669.14 and 10,375.80 is: 15,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.78 : 28,669.14 = 10,375.80 : x
  2. Step 2: Convert to fraction form
    19,134.78/28,669.14 = 10,375.80/x
  3. Step 3: Cross multiply
    19,134.78x = 28,669.14 × 10,375.80
  4. Step 4: Simplify right side
    19,134.78x = 297,465,262.81
  5. Step 5: Solve for x
    x = 297,465,262.81/19,134.78
  6. Step 6: Final answer
    x = 15,545.79

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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.