Home / 13,440.56-20,157.81-8,793.18

Finding the Fourth Proportional to 13,440.56, 20,157.81 and 8,793.18

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Solution

The fourth proportional to 13,440.56, 20,157.81 and 8,793.18 is: 13,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.56 : 20,157.81 = 8,793.18 : x
  2. Step 2: Convert to fraction form
    13,440.56/20,157.81 = 8,793.18/x
  3. Step 3: Cross multiply
    13,440.56x = 20,157.81 × 8,793.18
  4. Step 4: Simplify right side
    13,440.56x = 177,251,251.74
  5. Step 5: Solve for x
    x = 177,251,251.74/13,440.56
  6. Step 6: Final answer
    x = 13,187.79

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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.