Home / 15,201.56-20,972.38-9,230.96

Finding the Fourth Proportional to 15,201.56, 20,972.38 and 9,230.96

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Solution

The fourth proportional to 15,201.56, 20,972.38 and 9,230.96 is: 12,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,201.56 : 20,972.38 = 9,230.96 : x
  2. Step 2: Convert to fraction form
    15,201.56/20,972.38 = 9,230.96/x
  3. Step 3: Cross multiply
    15,201.56x = 20,972.38 × 9,230.96
  4. Step 4: Simplify right side
    15,201.56x = 193,595,200.88
  5. Step 5: Solve for x
    x = 193,595,200.88/15,201.56
  6. Step 6: Final answer
    x = 12,735.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.