Home / 13,444.62-20,170.38-7,902.72

Finding the Fourth Proportional to 13,444.62, 20,170.38 and 7,902.72

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Solution

The fourth proportional to 13,444.62, 20,170.38 and 7,902.72 is: 11,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.62 : 20,170.38 = 7,902.72 : x
  2. Step 2: Convert to fraction form
    13,444.62/20,170.38 = 7,902.72/x
  3. Step 3: Cross multiply
    13,444.62x = 20,170.38 × 7,902.72
  4. Step 4: Simplify right side
    13,444.62x = 159,400,865.43
  5. Step 5: Solve for x
    x = 159,400,865.43/13,444.62
  6. Step 6: Final answer
    x = 11,856.11

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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.