Home / 7,455.20-11,161.20-6,677.60

Finding the Fourth Proportional to 7,455.20, 11,161.20 and 6,677.60

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Solution

The fourth proportional to 7,455.20, 11,161.20 and 6,677.60 is: 9,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.20 : 11,161.20 = 6,677.60 : x
  2. Step 2: Convert to fraction form
    7,455.20/11,161.20 = 6,677.60/x
  3. Step 3: Cross multiply
    7,455.20x = 11,161.20 × 6,677.60
  4. Step 4: Simplify right side
    7,455.20x = 74,530,029.12
  5. Step 5: Solve for x
    x = 74,530,029.12/7,455.20
  6. Step 6: Final answer
    x = 9,997.05

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1.5x scale

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.