Home / 8,915.04-13,378.86-3,982.14

Finding the Fourth Proportional to 8,915.04, 13,378.86 and 3,982.14

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Solution

The fourth proportional to 8,915.04, 13,378.86 and 3,982.14 is: 5,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.04 : 13,378.86 = 3,982.14 : x
  2. Step 2: Convert to fraction form
    8,915.04/13,378.86 = 3,982.14/x
  3. Step 3: Cross multiply
    8,915.04x = 13,378.86 × 3,982.14
  4. Step 4: Simplify right side
    8,915.04x = 53,276,493.56
  5. Step 5: Solve for x
    x = 53,276,493.56/8,915.04
  6. Step 6: Final answer
    x = 5,976.02

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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.