Home / 7,987.67-11,023.19-4,451.14

Finding the Fourth Proportional to 7,987.67, 11,023.19 and 4,451.14

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Solution

The fourth proportional to 7,987.67, 11,023.19 and 4,451.14 is: 6,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.67 : 11,023.19 = 4,451.14 : x
  2. Step 2: Convert to fraction form
    7,987.67/11,023.19 = 4,451.14/x
  3. Step 3: Cross multiply
    7,987.67x = 11,023.19 × 4,451.14
  4. Step 4: Simplify right side
    7,987.67x = 49,065,761.94
  5. Step 5: Solve for x
    x = 49,065,761.94/7,987.67
  6. Step 6: Final answer
    x = 6,142.69

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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.