Home / 9,987.68-14,981.52-3,413.92

Finding the Fourth Proportional to 9,987.68, 14,981.52 and 3,413.92

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Solution

The fourth proportional to 9,987.68, 14,981.52 and 3,413.92 is: 5,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.68 : 14,981.52 = 3,413.92 : x
  2. Step 2: Convert to fraction form
    9,987.68/14,981.52 = 3,413.92/x
  3. Step 3: Cross multiply
    9,987.68x = 14,981.52 × 3,413.92
  4. Step 4: Simplify right side
    9,987.68x = 51,145,710.76
  5. Step 5: Solve for x
    x = 51,145,710.76/9,987.68
  6. Step 6: Final answer
    x = 5,120.88

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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.