Home / 18,475.40-27,717.10-6,789.48

Finding the Fourth Proportional to 18,475.40, 27,717.10 and 6,789.48

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Solution

The fourth proportional to 18,475.40, 27,717.10 and 6,789.48 is: 10,185.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.40 : 27,717.10 = 6,789.48 : x
  2. Step 2: Convert to fraction form
    18,475.40/27,717.10 = 6,789.48/x
  3. Step 3: Cross multiply
    18,475.40x = 27,717.10 × 6,789.48
  4. Step 4: Simplify right side
    18,475.40x = 188,184,696.11
  5. Step 5: Solve for x
    x = 188,184,696.11/18,475.40
  6. Step 6: Final answer
    x = 10,185.69

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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.