Home / 18,439.89-27,661.56-7,343.90

Finding the Fourth Proportional to 18,439.89, 27,661.56 and 7,343.90

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Solution

The fourth proportional to 18,439.89, 27,661.56 and 7,343.90 is: 11,016.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.89 : 27,661.56 = 7,343.90 : x
  2. Step 2: Convert to fraction form
    18,439.89/27,661.56 = 7,343.90/x
  3. Step 3: Cross multiply
    18,439.89x = 27,661.56 × 7,343.90
  4. Step 4: Simplify right side
    18,439.89x = 203,143,693.76
  5. Step 5: Solve for x
    x = 203,143,693.76/18,439.89
  6. Step 6: Final answer
    x = 11,016.54

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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.