Home / 18,112.72-25,000-11,043.04

Finding the Fourth Proportional to 18,112.72, 25,000 and 11,043.04

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Solution

The fourth proportional to 18,112.72, 25,000 and 11,043.04 is: 15,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.72 : 25,000 = 11,043.04 : x
  2. Step 2: Convert to fraction form
    18,112.72/25,000 = 11,043.04/x
  3. Step 3: Cross multiply
    18,112.72x = 25,000 × 11,043.04
  4. Step 4: Simplify right side
    18,112.72x = 276,076,000
  5. Step 5: Solve for x
    x = 276,076,000/18,112.72
  6. Step 6: Final answer
    x = 15,242.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.