Home / 8,043.22-11,040.46-7,139.26

Finding the Fourth Proportional to 8,043.22, 11,040.46 and 7,139.26

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Solution

The fourth proportional to 8,043.22, 11,040.46 and 7,139.26 is: 9,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.22 : 11,040.46 = 7,139.26 : x
  2. Step 2: Convert to fraction form
    8,043.22/11,040.46 = 7,139.26/x
  3. Step 3: Cross multiply
    8,043.22x = 11,040.46 × 7,139.26
  4. Step 4: Simplify right side
    8,043.22x = 78,820,714.46
  5. Step 5: Solve for x
    x = 78,820,714.46/8,043.22
  6. Step 6: Final answer
    x = 9,799.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.