Home / 6,139.55-8,476.74-4,720.73

Finding the Fourth Proportional to 6,139.55, 8,476.74 and 4,720.73

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Solution

The fourth proportional to 6,139.55, 8,476.74 and 4,720.73 is: 6,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.55 : 8,476.74 = 4,720.73 : x
  2. Step 2: Convert to fraction form
    6,139.55/8,476.74 = 4,720.73/x
  3. Step 3: Cross multiply
    6,139.55x = 8,476.74 × 4,720.73
  4. Step 4: Simplify right side
    6,139.55x = 40,016,358.44
  5. Step 5: Solve for x
    x = 40,016,358.44/6,139.55
  6. Step 6: Final answer
    x = 6,517.81

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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.