Home / 13,612.16-20,413.92-4,376

Finding the Fourth Proportional to 13,612.16, 20,413.92 and 4,376

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Solution

The fourth proportional to 13,612.16, 20,413.92 and 4,376 is: 6,562.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.16 : 20,413.92 = 4,376 : x
  2. Step 2: Convert to fraction form
    13,612.16/20,413.92 = 4,376/x
  3. Step 3: Cross multiply
    13,612.16x = 20,413.92 × 4,376
  4. Step 4: Simplify right side
    13,612.16x = 89,331,313.92
  5. Step 5: Solve for x
    x = 89,331,313.92/13,612.16
  6. Step 6: Final answer
    x = 6,562.61

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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.