Home / 13,424.81-20,132.42-5,102.61

Finding the Fourth Proportional to 13,424.81, 20,132.42 and 5,102.61

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Solution

The fourth proportional to 13,424.81, 20,132.42 and 5,102.61 is: 7,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.81 : 20,132.42 = 5,102.61 : x
  2. Step 2: Convert to fraction form
    13,424.81/20,132.42 = 5,102.61/x
  3. Step 3: Cross multiply
    13,424.81x = 20,132.42 × 5,102.61
  4. Step 4: Simplify right side
    13,424.81x = 102,727,786.61
  5. Step 5: Solve for x
    x = 102,727,786.61/13,424.81
  6. Step 6: Final answer
    x = 7,652.09

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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.