Home / 8,374.42-12,561.56-3,180.29

Finding the Fourth Proportional to 8,374.42, 12,561.56 and 3,180.29

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Solution

The fourth proportional to 8,374.42, 12,561.56 and 3,180.29 is: 4,770.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.42 : 12,561.56 = 3,180.29 : x
  2. Step 2: Convert to fraction form
    8,374.42/12,561.56 = 3,180.29/x
  3. Step 3: Cross multiply
    8,374.42x = 12,561.56 × 3,180.29
  4. Step 4: Simplify right side
    8,374.42x = 39,949,387.75
  5. Step 5: Solve for x
    x = 39,949,387.75/8,374.42
  6. Step 6: Final answer
    x = 4,770.41

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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.