Home / 13,151.57-19,720.33-5,747.36

Finding the Fourth Proportional to 13,151.57, 19,720.33 and 5,747.36

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Solution

The fourth proportional to 13,151.57, 19,720.33 and 5,747.36 is: 8,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.57 : 19,720.33 = 5,747.36 : x
  2. Step 2: Convert to fraction form
    13,151.57/19,720.33 = 5,747.36/x
  3. Step 3: Cross multiply
    13,151.57x = 19,720.33 × 5,747.36
  4. Step 4: Simplify right side
    13,151.57x = 113,339,722.86
  5. Step 5: Solve for x
    x = 113,339,722.86/13,151.57
  6. Step 6: Final answer
    x = 8,617.96

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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.