Home / 13,983.14-20,956.26-7,407.56

Finding the Fourth Proportional to 13,983.14, 20,956.26 and 7,407.56

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Solution

The fourth proportional to 13,983.14, 20,956.26 and 7,407.56 is: 11,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.14 : 20,956.26 = 7,407.56 : x
  2. Step 2: Convert to fraction form
    13,983.14/20,956.26 = 7,407.56/x
  3. Step 3: Cross multiply
    13,983.14x = 20,956.26 × 7,407.56
  4. Step 4: Simplify right side
    13,983.14x = 155,234,753.33
  5. Step 5: Solve for x
    x = 155,234,753.33/13,983.14
  6. Step 6: Final answer
    x = 11,101.57

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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.