Home / 8,182.82-12,251.35-4,421.12

Finding the Fourth Proportional to 8,182.82, 12,251.35 and 4,421.12

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Solution

The fourth proportional to 8,182.82, 12,251.35 and 4,421.12 is: 6,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.82 : 12,251.35 = 4,421.12 : x
  2. Step 2: Convert to fraction form
    8,182.82/12,251.35 = 4,421.12/x
  3. Step 3: Cross multiply
    8,182.82x = 12,251.35 × 4,421.12
  4. Step 4: Simplify right side
    8,182.82x = 54,164,693.79
  5. Step 5: Solve for x
    x = 54,164,693.79/8,182.82
  6. Step 6: Final answer
    x = 6,619.32

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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.