Home / 8,160.97-12,246.07-3,480.49

Finding the Fourth Proportional to 8,160.97, 12,246.07 and 3,480.49

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Solution

The fourth proportional to 8,160.97, 12,246.07 and 3,480.49 is: 5,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.97 : 12,246.07 = 3,480.49 : x
  2. Step 2: Convert to fraction form
    8,160.97/12,246.07 = 3,480.49/x
  3. Step 3: Cross multiply
    8,160.97x = 12,246.07 × 3,480.49
  4. Step 4: Simplify right side
    8,160.97x = 42,622,268.42
  5. Step 5: Solve for x
    x = 42,622,268.42/8,160.97
  6. Step 6: Final answer
    x = 5,222.70

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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.