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Finding the Fourth Proportional to 18,087.58, 27,125.79 and 6,398.11

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Solution

The fourth proportional to 18,087.58, 27,125.79 and 6,398.11 is: 9,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.58 : 27,125.79 = 6,398.11 : x
  2. Step 2: Convert to fraction form
    18,087.58/27,125.79 = 6,398.11/x
  3. Step 3: Cross multiply
    18,087.58x = 27,125.79 × 6,398.11
  4. Step 4: Simplify right side
    18,087.58x = 173,553,788.26
  5. Step 5: Solve for x
    x = 173,553,788.26/18,087.58
  6. Step 6: Final answer
    x = 9,595.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.