Home / 19,142.78-28,723.92-8,610.71

Finding the Fourth Proportional to 19,142.78, 28,723.92 and 8,610.71

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Solution

The fourth proportional to 19,142.78, 28,723.92 and 8,610.71 is: 12,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.78 : 28,723.92 = 8,610.71 : x
  2. Step 2: Convert to fraction form
    19,142.78/28,723.92 = 8,610.71/x
  3. Step 3: Cross multiply
    19,142.78x = 28,723.92 × 8,610.71
  4. Step 4: Simplify right side
    19,142.78x = 247,333,169.27
  5. Step 5: Solve for x
    x = 247,333,169.27/19,142.78
  6. Step 6: Final answer
    x = 12,920.44

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1.5x scale

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.