Home / 18,747.50-25,865.52-11,195.06

Finding the Fourth Proportional to 18,747.50, 25,865.52 and 11,195.06

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Solution

The fourth proportional to 18,747.50, 25,865.52 and 11,195.06 is: 15,445.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.50 : 25,865.52 = 11,195.06 : x
  2. Step 2: Convert to fraction form
    18,747.50/25,865.52 = 11,195.06/x
  3. Step 3: Cross multiply
    18,747.50x = 25,865.52 × 11,195.06
  4. Step 4: Simplify right side
    18,747.50x = 289,566,048.33
  5. Step 5: Solve for x
    x = 289,566,048.33/18,747.50
  6. Step 6: Final answer
    x = 15,445.58

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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.