Home / 8,968.16-12,375.56-4,989.04

Finding the Fourth Proportional to 8,968.16, 12,375.56 and 4,989.04

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Solution

The fourth proportional to 8,968.16, 12,375.56 and 4,989.04 is: 6,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.16 : 12,375.56 = 4,989.04 : x
  2. Step 2: Convert to fraction form
    8,968.16/12,375.56 = 4,989.04/x
  3. Step 3: Cross multiply
    8,968.16x = 12,375.56 × 4,989.04
  4. Step 4: Simplify right side
    8,968.16x = 61,742,163.86
  5. Step 5: Solve for x
    x = 61,742,163.86/8,968.16
  6. Step 6: Final answer
    x = 6,884.60

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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.