Home / 8,064.22-12,091.66-3,128.08

Finding the Fourth Proportional to 8,064.22, 12,091.66 and 3,128.08

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Solution

The fourth proportional to 8,064.22, 12,091.66 and 3,128.08 is: 4,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.22 : 12,091.66 = 3,128.08 : x
  2. Step 2: Convert to fraction form
    8,064.22/12,091.66 = 3,128.08/x
  3. Step 3: Cross multiply
    8,064.22x = 12,091.66 × 3,128.08
  4. Step 4: Simplify right side
    8,064.22x = 37,823,679.81
  5. Step 5: Solve for x
    x = 37,823,679.81/8,064.22
  6. Step 6: Final answer
    x = 4,690.31

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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.