Home / 18,404.34-25,394.48-11,691.06

Finding the Fourth Proportional to 18,404.34, 25,394.48 and 11,691.06

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Solution

The fourth proportional to 18,404.34, 25,394.48 and 11,691.06 is: 16,131.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.34 : 25,394.48 = 11,691.06 : x
  2. Step 2: Convert to fraction form
    18,404.34/25,394.48 = 11,691.06/x
  3. Step 3: Cross multiply
    18,404.34x = 25,394.48 × 11,691.06
  4. Step 4: Simplify right side
    18,404.34x = 296,888,389.35
  5. Step 5: Solve for x
    x = 296,888,389.35/18,404.34
  6. Step 6: Final answer
    x = 16,131.43

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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.