Home / 7,550.20-11,319.90-3,386.80

Finding the Fourth Proportional to 7,550.20, 11,319.90 and 3,386.80

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Solution

The fourth proportional to 7,550.20, 11,319.90 and 3,386.80 is: 5,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.20 : 11,319.90 = 3,386.80 : x
  2. Step 2: Convert to fraction form
    7,550.20/11,319.90 = 3,386.80/x
  3. Step 3: Cross multiply
    7,550.20x = 11,319.90 × 3,386.80
  4. Step 4: Simplify right side
    7,550.20x = 38,338,237.32
  5. Step 5: Solve for x
    x = 38,338,237.32/7,550.20
  6. Step 6: Final answer
    x = 5,077.78

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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.