Home / 6,113.11-8,436.14-3,318.61

Finding the Fourth Proportional to 6,113.11, 8,436.14 and 3,318.61

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Solution

The fourth proportional to 6,113.11, 8,436.14 and 3,318.61 is: 4,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.11 : 8,436.14 = 3,318.61 : x
  2. Step 2: Convert to fraction form
    6,113.11/8,436.14 = 3,318.61/x
  3. Step 3: Cross multiply
    6,113.11x = 8,436.14 × 3,318.61
  4. Step 4: Simplify right side
    6,113.11x = 27,996,258.57
  5. Step 5: Solve for x
    x = 27,996,258.57/6,113.11
  6. Step 6: Final answer
    x = 4,579.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.