Home / 18,987.61-26,198.43-11,025.11

Finding the Fourth Proportional to 18,987.61, 26,198.43 and 11,025.11

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Solution

The fourth proportional to 18,987.61, 26,198.43 and 11,025.11 is: 15,212.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.61 : 26,198.43 = 11,025.11 : x
  2. Step 2: Convert to fraction form
    18,987.61/26,198.43 = 11,025.11/x
  3. Step 3: Cross multiply
    18,987.61x = 26,198.43 × 11,025.11
  4. Step 4: Simplify right side
    18,987.61x = 288,840,572.58
  5. Step 5: Solve for x
    x = 288,840,572.58/18,987.61
  6. Step 6: Final answer
    x = 15,212.06

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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.