Home / 8,757.88-13,132.35-3,209.78

Finding the Fourth Proportional to 8,757.88, 13,132.35 and 3,209.78

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Solution

The fourth proportional to 8,757.88, 13,132.35 and 3,209.78 is: 4,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.88 : 13,132.35 = 3,209.78 : x
  2. Step 2: Convert to fraction form
    8,757.88/13,132.35 = 3,209.78/x
  3. Step 3: Cross multiply
    8,757.88x = 13,132.35 × 3,209.78
  4. Step 4: Simplify right side
    8,757.88x = 42,151,987.21
  5. Step 5: Solve for x
    x = 42,151,987.21/8,757.88
  6. Step 6: Final answer
    x = 4,813.04

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1.5x scale

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.