Home / 7,331.20-10,996.80-6,845.20

Finding the Fourth Proportional to 7,331.20, 10,996.80 and 6,845.20

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Solution

The fourth proportional to 7,331.20, 10,996.80 and 6,845.20 is: 10,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.20 : 10,996.80 = 6,845.20 : x
  2. Step 2: Convert to fraction form
    7,331.20/10,996.80 = 6,845.20/x
  3. Step 3: Cross multiply
    7,331.20x = 10,996.80 × 6,845.20
  4. Step 4: Simplify right side
    7,331.20x = 75,275,295.36
  5. Step 5: Solve for x
    x = 75,275,295.36/7,331.20
  6. Step 6: Final answer
    x = 10,267.80

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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.