Home / 8,213.68-12,320.52-3,833.20

Finding the Fourth Proportional to 8,213.68, 12,320.52 and 3,833.20

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Solution

The fourth proportional to 8,213.68, 12,320.52 and 3,833.20 is: 5,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.68 : 12,320.52 = 3,833.20 : x
  2. Step 2: Convert to fraction form
    8,213.68/12,320.52 = 3,833.20/x
  3. Step 3: Cross multiply
    8,213.68x = 12,320.52 × 3,833.20
  4. Step 4: Simplify right side
    8,213.68x = 47,227,017.26
  5. Step 5: Solve for x
    x = 47,227,017.26/8,213.68
  6. Step 6: Final answer
    x = 5,749.80

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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.