Home / 18,388.54-27,583.72-5,242.85

Finding the Fourth Proportional to 18,388.54, 27,583.72 and 5,242.85

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Solution

The fourth proportional to 18,388.54, 27,583.72 and 5,242.85 is: 7,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.54 : 27,583.72 = 5,242.85 : x
  2. Step 2: Convert to fraction form
    18,388.54/27,583.72 = 5,242.85/x
  3. Step 3: Cross multiply
    18,388.54x = 27,583.72 × 5,242.85
  4. Step 4: Simplify right side
    18,388.54x = 144,617,306.40
  5. Step 5: Solve for x
    x = 144,617,306.40/18,388.54
  6. Step 6: Final answer
    x = 7,864.53

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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.