Home / 6,872.55-10,312.79-4,105.95

Finding the Fourth Proportional to 6,872.55, 10,312.79 and 4,105.95

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Solution

The fourth proportional to 6,872.55, 10,312.79 and 4,105.95 is: 6,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.55 : 10,312.79 = 4,105.95 : x
  2. Step 2: Convert to fraction form
    6,872.55/10,312.79 = 4,105.95/x
  3. Step 3: Cross multiply
    6,872.55x = 10,312.79 × 4,105.95
  4. Step 4: Simplify right side
    6,872.55x = 42,343,779.57
  5. Step 5: Solve for x
    x = 42,343,779.57/6,872.55
  6. Step 6: Final answer
    x = 6,161.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.