Home / 13,966.28-20,949.65-3,436.34

Finding the Fourth Proportional to 13,966.28, 20,949.65 and 3,436.34

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Solution

The fourth proportional to 13,966.28, 20,949.65 and 3,436.34 is: 5,154.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.28 : 20,949.65 = 3,436.34 : x
  2. Step 2: Convert to fraction form
    13,966.28/20,949.65 = 3,436.34/x
  3. Step 3: Cross multiply
    13,966.28x = 20,949.65 × 3,436.34
  4. Step 4: Simplify right side
    13,966.28x = 71,990,030.57
  5. Step 5: Solve for x
    x = 71,990,030.57/13,966.28
  6. Step 6: Final answer
    x = 5,154.56

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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.