Home / 13,942.07-20,920.28-9,265.30

Finding the Fourth Proportional to 13,942.07, 20,920.28 and 9,265.30

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Solution

The fourth proportional to 13,942.07, 20,920.28 and 9,265.30 is: 13,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.07 : 20,920.28 = 9,265.30 : x
  2. Step 2: Convert to fraction form
    13,942.07/20,920.28 = 9,265.30/x
  3. Step 3: Cross multiply
    13,942.07x = 20,920.28 × 9,265.30
  4. Step 4: Simplify right side
    13,942.07x = 193,832,519.36
  5. Step 5: Solve for x
    x = 193,832,519.36/13,942.07
  6. Step 6: Final answer
    x = 13,902.71

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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.