Home / 13,541.54-20,261.28-7,997.90

Finding the Fourth Proportional to 13,541.54, 20,261.28 and 7,997.90

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Solution

The fourth proportional to 13,541.54, 20,261.28 and 7,997.90 is: 11,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.54 : 20,261.28 = 7,997.90 : x
  2. Step 2: Convert to fraction form
    13,541.54/20,261.28 = 7,997.90/x
  3. Step 3: Cross multiply
    13,541.54x = 20,261.28 × 7,997.90
  4. Step 4: Simplify right side
    13,541.54x = 162,047,691.31
  5. Step 5: Solve for x
    x = 162,047,691.31/13,541.54
  6. Step 6: Final answer
    x = 11,966.71

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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.