Home / 8,213.68-12,324.12-4,317.20

Finding the Fourth Proportional to 8,213.68, 12,324.12 and 4,317.20

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Solution

The fourth proportional to 8,213.68, 12,324.12 and 4,317.20 is: 6,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.68 : 12,324.12 = 4,317.20 : x
  2. Step 2: Convert to fraction form
    8,213.68/12,324.12 = 4,317.20/x
  3. Step 3: Cross multiply
    8,213.68x = 12,324.12 × 4,317.20
  4. Step 4: Simplify right side
    8,213.68x = 53,205,690.86
  5. Step 5: Solve for x
    x = 53,205,690.86/8,213.68
  6. Step 6: Final answer
    x = 6,477.69

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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.