Home / 6,747.19-9,311.13-3,915.12

Finding the Fourth Proportional to 6,747.19, 9,311.13 and 3,915.12

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Solution

The fourth proportional to 6,747.19, 9,311.13 and 3,915.12 is: 5,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.19 : 9,311.13 = 3,915.12 : x
  2. Step 2: Convert to fraction form
    6,747.19/9,311.13 = 3,915.12/x
  3. Step 3: Cross multiply
    6,747.19x = 9,311.13 × 3,915.12
  4. Step 4: Simplify right side
    6,747.19x = 36,454,191.29
  5. Step 5: Solve for x
    x = 36,454,191.29/6,747.19
  6. Step 6: Final answer
    x = 5,402.87

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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.