Home / 8,763.20-13,132.80-5,633.60

Finding the Fourth Proportional to 8,763.20, 13,132.80 and 5,633.60

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Solution

The fourth proportional to 8,763.20, 13,132.80 and 5,633.60 is: 8,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.20 : 13,132.80 = 5,633.60 : x
  2. Step 2: Convert to fraction form
    8,763.20/13,132.80 = 5,633.60/x
  3. Step 3: Cross multiply
    8,763.20x = 13,132.80 × 5,633.60
  4. Step 4: Simplify right side
    8,763.20x = 73,984,942.08
  5. Step 5: Solve for x
    x = 73,984,942.08/8,763.20
  6. Step 6: Final answer
    x = 8,442.69

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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.