Home / 17,820.12-26,730.36-7,959.90

Finding the Fourth Proportional to 17,820.12, 26,730.36 and 7,959.90

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Solution

The fourth proportional to 17,820.12, 26,730.36 and 7,959.90 is: 11,939.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.12 : 26,730.36 = 7,959.90 : x
  2. Step 2: Convert to fraction form
    17,820.12/26,730.36 = 7,959.90/x
  3. Step 3: Cross multiply
    17,820.12x = 26,730.36 × 7,959.90
  4. Step 4: Simplify right side
    17,820.12x = 212,770,992.56
  5. Step 5: Solve for x
    x = 212,770,992.56/17,820.12
  6. Step 6: Final answer
    x = 11,939.93

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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.