Home / 6,432.12-8,876.66-3,913.83

Finding the Fourth Proportional to 6,432.12, 8,876.66 and 3,913.83

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Solution

The fourth proportional to 6,432.12, 8,876.66 and 3,913.83 is: 5,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.12 : 8,876.66 = 3,913.83 : x
  2. Step 2: Convert to fraction form
    6,432.12/8,876.66 = 3,913.83/x
  3. Step 3: Cross multiply
    6,432.12x = 8,876.66 × 3,913.83
  4. Step 4: Simplify right side
    6,432.12x = 34,741,718.64
  5. Step 5: Solve for x
    x = 34,741,718.64/6,432.12
  6. Step 6: Final answer
    x = 5,401.29

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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.