Home / 8,212.79-12,319.25-3,532.47

Finding the Fourth Proportional to 8,212.79, 12,319.25 and 3,532.47

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Solution

The fourth proportional to 8,212.79, 12,319.25 and 3,532.47 is: 5,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.79 : 12,319.25 = 3,532.47 : x
  2. Step 2: Convert to fraction form
    8,212.79/12,319.25 = 3,532.47/x
  3. Step 3: Cross multiply
    8,212.79x = 12,319.25 × 3,532.47
  4. Step 4: Simplify right side
    8,212.79x = 43,517,363.39
  5. Step 5: Solve for x
    x = 43,517,363.39/8,212.79
  6. Step 6: Final answer
    x = 5,298.73

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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.