Home / 8,722.89-13,082.50-2,878.13

Finding the Fourth Proportional to 8,722.89, 13,082.50 and 2,878.13

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Solution

The fourth proportional to 8,722.89, 13,082.50 and 2,878.13 is: 4,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.89 : 13,082.50 = 2,878.13 : x
  2. Step 2: Convert to fraction form
    8,722.89/13,082.50 = 2,878.13/x
  3. Step 3: Cross multiply
    8,722.89x = 13,082.50 × 2,878.13
  4. Step 4: Simplify right side
    8,722.89x = 37,653,135.73
  5. Step 5: Solve for x
    x = 37,653,135.73/8,722.89
  6. Step 6: Final answer
    x = 4,316.59

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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.