Home / 18,577.72-27,876.16-12,342.04

Finding the Fourth Proportional to 18,577.72, 27,876.16 and 12,342.04

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Solution

The fourth proportional to 18,577.72, 27,876.16 and 12,342.04 is: 18,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.72 : 27,876.16 = 12,342.04 : x
  2. Step 2: Convert to fraction form
    18,577.72/27,876.16 = 12,342.04/x
  3. Step 3: Cross multiply
    18,577.72x = 27,876.16 × 12,342.04
  4. Step 4: Simplify right side
    18,577.72x = 344,048,681.77
  5. Step 5: Solve for x
    x = 344,048,681.77/18,577.72
  6. Step 6: Final answer
    x = 18,519.42

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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.