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Finding the Fourth Proportional to 18,587.88, 25,650 and 11,873.52

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Solution

The fourth proportional to 18,587.88, 25,650 and 11,873.52 is: 16,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.88 : 25,650 = 11,873.52 : x
  2. Step 2: Convert to fraction form
    18,587.88/25,650 = 11,873.52/x
  3. Step 3: Cross multiply
    18,587.88x = 25,650 × 11,873.52
  4. Step 4: Simplify right side
    18,587.88x = 304,555,788
  5. Step 5: Solve for x
    x = 304,555,788/18,587.88
  6. Step 6: Final answer
    x = 16,384.64

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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.