Home / 13,424.24-20,129.45-5,097.90

Finding the Fourth Proportional to 13,424.24, 20,129.45 and 5,097.90

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Solution

The fourth proportional to 13,424.24, 20,129.45 and 5,097.90 is: 7,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.24 : 20,129.45 = 5,097.90 : x
  2. Step 2: Convert to fraction form
    13,424.24/20,129.45 = 5,097.90/x
  3. Step 3: Cross multiply
    13,424.24x = 20,129.45 × 5,097.90
  4. Step 4: Simplify right side
    13,424.24x = 102,617,897.67
  5. Step 5: Solve for x
    x = 102,617,897.67/13,424.24
  6. Step 6: Final answer
    x = 7,644.23

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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.