Home / 18,587.52-27,890.82-12,351.81

Finding the Fourth Proportional to 18,587.52, 27,890.82 and 12,351.81

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Solution

The fourth proportional to 18,587.52, 27,890.82 and 12,351.81 is: 18,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.52 : 27,890.82 = 12,351.81 : x
  2. Step 2: Convert to fraction form
    18,587.52/27,890.82 = 12,351.81/x
  3. Step 3: Cross multiply
    18,587.52x = 27,890.82 × 12,351.81
  4. Step 4: Simplify right side
    18,587.52x = 344,502,109.38
  5. Step 5: Solve for x
    x = 344,502,109.38/18,587.52
  6. Step 6: Final answer
    x = 18,534.05

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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.