Home / 13,434.60-20,151.92-5,112.68

Finding the Fourth Proportional to 13,434.60, 20,151.92 and 5,112.68

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Solution

The fourth proportional to 13,434.60, 20,151.92 and 5,112.68 is: 7,669.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.60 : 20,151.92 = 5,112.68 : x
  2. Step 2: Convert to fraction form
    13,434.60/20,151.92 = 5,112.68/x
  3. Step 3: Cross multiply
    13,434.60x = 20,151.92 × 5,112.68
  4. Step 4: Simplify right side
    13,434.60x = 103,030,318.35
  5. Step 5: Solve for x
    x = 103,030,318.35/13,434.60
  6. Step 6: Final answer
    x = 7,669.03

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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.