Home / 13,942.28-20,920.54-9,265.48

Finding the Fourth Proportional to 13,942.28, 20,920.54 and 9,265.48

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Solution

The fourth proportional to 13,942.28, 20,920.54 and 9,265.48 is: 13,902.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.28 : 20,920.54 = 9,265.48 : x
  2. Step 2: Convert to fraction form
    13,942.28/20,920.54 = 9,265.48/x
  3. Step 3: Cross multiply
    13,942.28x = 20,920.54 × 9,265.48
  4. Step 4: Simplify right side
    13,942.28x = 193,838,844.96
  5. Step 5: Solve for x
    x = 193,838,844.96/13,942.28
  6. Step 6: Final answer
    x = 13,902.95

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1.5x scale

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.