Home / 18,258.57-27,388.82-5,779.91

Finding the Fourth Proportional to 18,258.57, 27,388.82 and 5,779.91

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Solution

The fourth proportional to 18,258.57, 27,388.82 and 5,779.91 is: 8,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.57 : 27,388.82 = 5,779.91 : x
  2. Step 2: Convert to fraction form
    18,258.57/27,388.82 = 5,779.91/x
  3. Step 3: Cross multiply
    18,258.57x = 27,388.82 × 5,779.91
  4. Step 4: Simplify right side
    18,258.57x = 158,304,914.61
  5. Step 5: Solve for x
    x = 158,304,914.61/18,258.57
  6. Step 6: Final answer
    x = 8,670.17

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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.