Home / 12,577.65-18,869.19-3,813.22

Finding the Fourth Proportional to 12,577.65, 18,869.19 and 3,813.22

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Solution

The fourth proportional to 12,577.65, 18,869.19 and 3,813.22 is: 5,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.65 : 18,869.19 = 3,813.22 : x
  2. Step 2: Convert to fraction form
    12,577.65/18,869.19 = 3,813.22/x
  3. Step 3: Cross multiply
    12,577.65x = 18,869.19 × 3,813.22
  4. Step 4: Simplify right side
    12,577.65x = 71,952,372.69
  5. Step 5: Solve for x
    x = 71,952,372.69/12,577.65
  6. Step 6: Final answer
    x = 5,720.65

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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.