Home / 8,619.15-12,932.33-2,777.55

Finding the Fourth Proportional to 8,619.15, 12,932.33 and 2,777.55

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Solution

The fourth proportional to 8,619.15, 12,932.33 and 2,777.55 is: 4,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.15 : 12,932.33 = 2,777.55 : x
  2. Step 2: Convert to fraction form
    8,619.15/12,932.33 = 2,777.55/x
  3. Step 3: Cross multiply
    8,619.15x = 12,932.33 × 2,777.55
  4. Step 4: Simplify right side
    8,619.15x = 35,920,179.30
  5. Step 5: Solve for x
    x = 35,920,179.30/8,619.15
  6. Step 6: Final answer
    x = 4,167.49

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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.