Home / 13,691.40-20,537.04-3,303.15

Finding the Fourth Proportional to 13,691.40, 20,537.04 and 3,303.15

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Solution

The fourth proportional to 13,691.40, 20,537.04 and 3,303.15 is: 4,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.40 : 20,537.04 = 3,303.15 : x
  2. Step 2: Convert to fraction form
    13,691.40/20,537.04 = 3,303.15/x
  3. Step 3: Cross multiply
    13,691.40x = 20,537.04 × 3,303.15
  4. Step 4: Simplify right side
    13,691.40x = 67,836,923.68
  5. Step 5: Solve for x
    x = 67,836,923.68/13,691.40
  6. Step 6: Final answer
    x = 4,954.71

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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.