Home / 7,872.15-10,863.50-4,335.29

Finding the Fourth Proportional to 7,872.15, 10,863.50 and 4,335.29

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Solution

The fourth proportional to 7,872.15, 10,863.50 and 4,335.29 is: 5,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.15 : 10,863.50 = 4,335.29 : x
  2. Step 2: Convert to fraction form
    7,872.15/10,863.50 = 4,335.29/x
  3. Step 3: Cross multiply
    7,872.15x = 10,863.50 × 4,335.29
  4. Step 4: Simplify right side
    7,872.15x = 47,096,346.92
  5. Step 5: Solve for x
    x = 47,096,346.92/7,872.15
  6. Step 6: Final answer
    x = 5,982.65

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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.