Home / 13,517.27-20,248.71-6,742.43

Finding the Fourth Proportional to 13,517.27, 20,248.71 and 6,742.43

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Solution

The fourth proportional to 13,517.27, 20,248.71 and 6,742.43 is: 10,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.27 : 20,248.71 = 6,742.43 : x
  2. Step 2: Convert to fraction form
    13,517.27/20,248.71 = 6,742.43/x
  3. Step 3: Cross multiply
    13,517.27x = 20,248.71 × 6,742.43
  4. Step 4: Simplify right side
    13,517.27x = 136,525,509.77
  5. Step 5: Solve for x
    x = 136,525,509.77/13,517.27
  6. Step 6: Final answer
    x = 10,100.08

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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.