Home / 18,664.38-27,985.56-8,808.30

Finding the Fourth Proportional to 18,664.38, 27,985.56 and 8,808.30

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Solution

The fourth proportional to 18,664.38, 27,985.56 and 8,808.30 is: 13,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.38 : 27,985.56 = 8,808.30 : x
  2. Step 2: Convert to fraction form
    18,664.38/27,985.56 = 8,808.30/x
  3. Step 3: Cross multiply
    18,664.38x = 27,985.56 × 8,808.30
  4. Step 4: Simplify right side
    18,664.38x = 246,505,208.15
  5. Step 5: Solve for x
    x = 246,505,208.15/18,664.38
  6. Step 6: Final answer
    x = 13,207.25

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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.