Home / 7,971.20-11,003.24-6,847.64

Finding the Fourth Proportional to 7,971.20, 11,003.24 and 6,847.64

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Solution

The fourth proportional to 7,971.20, 11,003.24 and 6,847.64 is: 9,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.20 : 11,003.24 = 6,847.64 : x
  2. Step 2: Convert to fraction form
    7,971.20/11,003.24 = 6,847.64/x
  3. Step 3: Cross multiply
    7,971.20x = 11,003.24 × 6,847.64
  4. Step 4: Simplify right side
    7,971.20x = 75,346,226.35
  5. Step 5: Solve for x
    x = 75,346,226.35/7,971.20
  6. Step 6: Final answer
    x = 9,452.31

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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.