Home / 18,934.43-28,407.17-5,607.77

Finding the Fourth Proportional to 18,934.43, 28,407.17 and 5,607.77

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Solution

The fourth proportional to 18,934.43, 28,407.17 and 5,607.77 is: 8,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.43 : 28,407.17 = 5,607.77 : x
  2. Step 2: Convert to fraction form
    18,934.43/28,407.17 = 5,607.77/x
  3. Step 3: Cross multiply
    18,934.43x = 28,407.17 × 5,607.77
  4. Step 4: Simplify right side
    18,934.43x = 159,300,747.69
  5. Step 5: Solve for x
    x = 159,300,747.69/18,934.43
  6. Step 6: Final answer
    x = 8,413.29

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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.