Home / 8,187.12-12,278.52-2,343.96

Finding the Fourth Proportional to 8,187.12, 12,278.52 and 2,343.96

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Solution

The fourth proportional to 8,187.12, 12,278.52 and 2,343.96 is: 3,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.12 : 12,278.52 = 2,343.96 : x
  2. Step 2: Convert to fraction form
    8,187.12/12,278.52 = 2,343.96/x
  3. Step 3: Cross multiply
    8,187.12x = 12,278.52 × 2,343.96
  4. Step 4: Simplify right side
    8,187.12x = 28,780,359.74
  5. Step 5: Solve for x
    x = 28,780,359.74/8,187.12
  6. Step 6: Final answer
    x = 3,515.32

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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.