Home / 8,143.52-12,216.11-2,220.53

Finding the Fourth Proportional to 8,143.52, 12,216.11 and 2,220.53

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Solution

The fourth proportional to 8,143.52, 12,216.11 and 2,220.53 is: 3,331.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.52 : 12,216.11 = 2,220.53 : x
  2. Step 2: Convert to fraction form
    8,143.52/12,216.11 = 2,220.53/x
  3. Step 3: Cross multiply
    8,143.52x = 12,216.11 × 2,220.53
  4. Step 4: Simplify right side
    8,143.52x = 27,126,166.56
  5. Step 5: Solve for x
    x = 27,126,166.56/8,143.52
  6. Step 6: Final answer
    x = 3,331.01

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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.