Home / 6,972.11-9,620.48-3,987.26

Finding the Fourth Proportional to 6,972.11, 9,620.48 and 3,987.26

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Solution

The fourth proportional to 6,972.11, 9,620.48 and 3,987.26 is: 5,501.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.11 : 9,620.48 = 3,987.26 : x
  2. Step 2: Convert to fraction form
    6,972.11/9,620.48 = 3,987.26/x
  3. Step 3: Cross multiply
    6,972.11x = 9,620.48 × 3,987.26
  4. Step 4: Simplify right side
    6,972.11x = 38,359,335.15
  5. Step 5: Solve for x
    x = 38,359,335.15/6,972.11
  6. Step 6: Final answer
    x = 5,501.83

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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.