Home / 8,040.09-11,089.22-7,043.64

Finding the Fourth Proportional to 8,040.09, 11,089.22 and 7,043.64

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Solution

The fourth proportional to 8,040.09, 11,089.22 and 7,043.64 is: 9,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.09 : 11,089.22 = 7,043.64 : x
  2. Step 2: Convert to fraction form
    8,040.09/11,089.22 = 7,043.64/x
  3. Step 3: Cross multiply
    8,040.09x = 11,089.22 × 7,043.64
  4. Step 4: Simplify right side
    8,040.09x = 78,108,418.11
  5. Step 5: Solve for x
    x = 78,108,418.11/8,040.09
  6. Step 6: Final answer
    x = 9,714.87

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1.5x scale

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.