Home / 8,147.28-12,220.77-2,600.58

Finding the Fourth Proportional to 8,147.28, 12,220.77 and 2,600.58

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Solution

The fourth proportional to 8,147.28, 12,220.77 and 2,600.58 is: 3,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.28 : 12,220.77 = 2,600.58 : x
  2. Step 2: Convert to fraction form
    8,147.28/12,220.77 = 2,600.58/x
  3. Step 3: Cross multiply
    8,147.28x = 12,220.77 × 2,600.58
  4. Step 4: Simplify right side
    8,147.28x = 31,781,090.05
  5. Step 5: Solve for x
    x = 31,781,090.05/8,147.28
  6. Step 6: Final answer
    x = 3,900.82

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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.