Home / 9,981.06-14,972.74-3,318.15

Finding the Fourth Proportional to 9,981.06, 14,972.74 and 3,318.15

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Solution

The fourth proportional to 9,981.06, 14,972.74 and 3,318.15 is: 4,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.06 : 14,972.74 = 3,318.15 : x
  2. Step 2: Convert to fraction form
    9,981.06/14,972.74 = 3,318.15/x
  3. Step 3: Cross multiply
    9,981.06x = 14,972.74 × 3,318.15
  4. Step 4: Simplify right side
    9,981.06x = 49,681,797.23
  5. Step 5: Solve for x
    x = 49,681,797.23/9,981.06
  6. Step 6: Final answer
    x = 4,977.61

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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.