Home / 8,765.28-13,149-3,570.48

Finding the Fourth Proportional to 8,765.28, 13,149 and 3,570.48

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Solution

The fourth proportional to 8,765.28, 13,149 and 3,570.48 is: 5,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.28 : 13,149 = 3,570.48 : x
  2. Step 2: Convert to fraction form
    8,765.28/13,149 = 3,570.48/x
  3. Step 3: Cross multiply
    8,765.28x = 13,149 × 3,570.48
  4. Step 4: Simplify right side
    8,765.28x = 46,948,241.52
  5. Step 5: Solve for x
    x = 46,948,241.52/8,765.28
  6. Step 6: Final answer
    x = 5,356.16

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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.