Home / 8,968.08-12,375.25-4,988.55

Finding the Fourth Proportional to 8,968.08, 12,375.25 and 4,988.55

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Solution

The fourth proportional to 8,968.08, 12,375.25 and 4,988.55 is: 6,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.08 : 12,375.25 = 4,988.55 : x
  2. Step 2: Convert to fraction form
    8,968.08/12,375.25 = 4,988.55/x
  3. Step 3: Cross multiply
    8,968.08x = 12,375.25 × 4,988.55
  4. Step 4: Simplify right side
    8,968.08x = 61,734,553.39
  5. Step 5: Solve for x
    x = 61,734,553.39/8,968.08
  6. Step 6: Final answer
    x = 6,883.81

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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.