Home / 18,301.70-25,257.04-11,129.54

Finding the Fourth Proportional to 18,301.70, 25,257.04 and 11,129.54

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Solution

The fourth proportional to 18,301.70, 25,257.04 and 11,129.54 is: 15,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.70 : 25,257.04 = 11,129.54 : x
  2. Step 2: Convert to fraction form
    18,301.70/25,257.04 = 11,129.54/x
  3. Step 3: Cross multiply
    18,301.70x = 25,257.04 × 11,129.54
  4. Step 4: Simplify right side
    18,301.70x = 281,099,236.96
  5. Step 5: Solve for x
    x = 281,099,236.96/18,301.70
  6. Step 6: Final answer
    x = 15,359.19

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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.