Home / 18,587.24-25,644.14-11,876.79

Finding the Fourth Proportional to 18,587.24, 25,644.14 and 11,876.79

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Solution

The fourth proportional to 18,587.24, 25,644.14 and 11,876.79 is: 16,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.24 : 25,644.14 = 11,876.79 : x
  2. Step 2: Convert to fraction form
    18,587.24/25,644.14 = 11,876.79/x
  3. Step 3: Cross multiply
    18,587.24x = 25,644.14 × 11,876.79
  4. Step 4: Simplify right side
    18,587.24x = 304,570,035.82
  5. Step 5: Solve for x
    x = 304,570,035.82/18,587.24
  6. Step 6: Final answer
    x = 16,385.98

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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.