Home / 8,968.14-12,375.69-4,989.12

Finding the Fourth Proportional to 8,968.14, 12,375.69 and 4,989.12

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Solution

The fourth proportional to 8,968.14, 12,375.69 and 4,989.12 is: 6,884.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.14 : 12,375.69 = 4,989.12 : x
  2. Step 2: Convert to fraction form
    8,968.14/12,375.69 = 4,989.12/x
  3. Step 3: Cross multiply
    8,968.14x = 12,375.69 × 4,989.12
  4. Step 4: Simplify right side
    8,968.14x = 61,743,802.49
  5. Step 5: Solve for x
    x = 61,743,802.49/8,968.14
  6. Step 6: Final answer
    x = 6,884.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.