Home / 18,117.06-25,001.80-10,945.98

Finding the Fourth Proportional to 18,117.06, 25,001.80 and 10,945.98

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Solution

The fourth proportional to 18,117.06, 25,001.80 and 10,945.98 is: 15,105.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.06 : 25,001.80 = 10,945.98 : x
  2. Step 2: Convert to fraction form
    18,117.06/25,001.80 = 10,945.98/x
  3. Step 3: Cross multiply
    18,117.06x = 25,001.80 × 10,945.98
  4. Step 4: Simplify right side
    18,117.06x = 273,669,236.97
  5. Step 5: Solve for x
    x = 273,669,236.97/18,117.06
  6. Step 6: Final answer
    x = 15,105.61

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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.