Home / 18,288.14-25,239.50-13,187.86

Finding the Fourth Proportional to 18,288.14, 25,239.50 and 13,187.86

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Solution

The fourth proportional to 18,288.14, 25,239.50 and 13,187.86 is: 18,200.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.14 : 25,239.50 = 13,187.86 : x
  2. Step 2: Convert to fraction form
    18,288.14/25,239.50 = 13,187.86/x
  3. Step 3: Cross multiply
    18,288.14x = 25,239.50 × 13,187.86
  4. Step 4: Simplify right side
    18,288.14x = 332,854,912.89
  5. Step 5: Solve for x
    x = 332,854,912.89/18,288.14
  6. Step 6: Final answer
    x = 18,200.59

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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.