Home / 8,182.72-12,275.04-2,989.12

Finding the Fourth Proportional to 8,182.72, 12,275.04 and 2,989.12

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Solution

The fourth proportional to 8,182.72, 12,275.04 and 2,989.12 is: 4,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.72 : 12,275.04 = 2,989.12 : x
  2. Step 2: Convert to fraction form
    8,182.72/12,275.04 = 2,989.12/x
  3. Step 3: Cross multiply
    8,182.72x = 12,275.04 × 2,989.12
  4. Step 4: Simplify right side
    8,182.72x = 36,691,567.56
  5. Step 5: Solve for x
    x = 36,691,567.56/8,182.72
  6. Step 6: Final answer
    x = 4,484.03

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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.