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Finding the Fourth Proportional to 8,992.80, 12,395.88 and 6,751.44

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Solution

The fourth proportional to 8,992.80, 12,395.88 and 6,751.44 is: 9,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.80 : 12,395.88 = 6,751.44 : x
  2. Step 2: Convert to fraction form
    8,992.80/12,395.88 = 6,751.44/x
  3. Step 3: Cross multiply
    8,992.80x = 12,395.88 × 6,751.44
  4. Step 4: Simplify right side
    8,992.80x = 83,690,040.07
  5. Step 5: Solve for x
    x = 83,690,040.07/8,992.80
  6. Step 6: Final answer
    x = 9,306.34

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1.5x scale

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.