Home / 18,451.98-25,462.89-11,379.06

Finding the Fourth Proportional to 18,451.98, 25,462.89 and 11,379.06

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Solution

The fourth proportional to 18,451.98, 25,462.89 and 11,379.06 is: 15,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.98 : 25,462.89 = 11,379.06 : x
  2. Step 2: Convert to fraction form
    18,451.98/25,462.89 = 11,379.06/x
  3. Step 3: Cross multiply
    18,451.98x = 25,462.89 × 11,379.06
  4. Step 4: Simplify right side
    18,451.98x = 289,743,753.08
  5. Step 5: Solve for x
    x = 289,743,753.08/18,451.98
  6. Step 6: Final answer
    x = 15,702.58

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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.