Home / 8,260.90-12,391.77-2,338.21

Finding the Fourth Proportional to 8,260.90, 12,391.77 and 2,338.21

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Solution

The fourth proportional to 8,260.90, 12,391.77 and 2,338.21 is: 3,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.90 : 12,391.77 = 2,338.21 : x
  2. Step 2: Convert to fraction form
    8,260.90/12,391.77 = 2,338.21/x
  3. Step 3: Cross multiply
    8,260.90x = 12,391.77 × 2,338.21
  4. Step 4: Simplify right side
    8,260.90x = 28,974,560.53
  5. Step 5: Solve for x
    x = 28,974,560.53/8,260.90
  6. Step 6: Final answer
    x = 3,507.43

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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.