Home / 13,138.96-19,691.16-5,343.52

Finding the Fourth Proportional to 13,138.96, 19,691.16 and 5,343.52

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Solution

The fourth proportional to 13,138.96, 19,691.16 and 5,343.52 is: 8,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.96 : 19,691.16 = 5,343.52 : x
  2. Step 2: Convert to fraction form
    13,138.96/19,691.16 = 5,343.52/x
  3. Step 3: Cross multiply
    13,138.96x = 19,691.16 × 5,343.52
  4. Step 4: Simplify right side
    13,138.96x = 105,220,107.28
  5. Step 5: Solve for x
    x = 105,220,107.28/13,138.96
  6. Step 6: Final answer
    x = 8,008.25

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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.