Home / 13,147.22-19,723.23-4,381.30

Finding the Fourth Proportional to 13,147.22, 19,723.23 and 4,381.30

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Solution

The fourth proportional to 13,147.22, 19,723.23 and 4,381.30 is: 6,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.22 : 19,723.23 = 4,381.30 : x
  2. Step 2: Convert to fraction form
    13,147.22/19,723.23 = 4,381.30/x
  3. Step 3: Cross multiply
    13,147.22x = 19,723.23 × 4,381.30
  4. Step 4: Simplify right side
    13,147.22x = 86,413,387.60
  5. Step 5: Solve for x
    x = 86,413,387.60/13,147.22
  6. Step 6: Final answer
    x = 6,572.75

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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.