Home / 13,419.26-18,517.70-7,450.92

Finding the Fourth Proportional to 13,419.26, 18,517.70 and 7,450.92

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Solution

The fourth proportional to 13,419.26, 18,517.70 and 7,450.92 is: 10,281.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.26 : 18,517.70 = 7,450.92 : x
  2. Step 2: Convert to fraction form
    13,419.26/18,517.70 = 7,450.92/x
  3. Step 3: Cross multiply
    13,419.26x = 18,517.70 × 7,450.92
  4. Step 4: Simplify right side
    13,419.26x = 137,973,901.28
  5. Step 5: Solve for x
    x = 137,973,901.28/13,419.26
  6. Step 6: Final answer
    x = 10,281.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.