Home / 8,212.08-12,318.66-2,948.16

Finding the Fourth Proportional to 8,212.08, 12,318.66 and 2,948.16

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Solution

The fourth proportional to 8,212.08, 12,318.66 and 2,948.16 is: 4,422.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.08 : 12,318.66 = 2,948.16 : x
  2. Step 2: Convert to fraction form
    8,212.08/12,318.66 = 2,948.16/x
  3. Step 3: Cross multiply
    8,212.08x = 12,318.66 × 2,948.16
  4. Step 4: Simplify right side
    8,212.08x = 36,317,380.67
  5. Step 5: Solve for x
    x = 36,317,380.67/8,212.08
  6. Step 6: Final answer
    x = 4,422.43

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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.