Home / 13,942.57-20,921.03-9,265.80

Finding the Fourth Proportional to 13,942.57, 20,921.03 and 9,265.80

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Solution

The fourth proportional to 13,942.57, 20,921.03 and 9,265.80 is: 13,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.57 : 20,921.03 = 9,265.80 : x
  2. Step 2: Convert to fraction form
    13,942.57/20,921.03 = 9,265.80/x
  3. Step 3: Cross multiply
    13,942.57x = 20,921.03 × 9,265.80
  4. Step 4: Simplify right side
    13,942.57x = 193,850,079.77
  5. Step 5: Solve for x
    x = 193,850,079.77/13,942.57
  6. Step 6: Final answer
    x = 13,903.47

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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.