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Finding the Fourth Proportional to 6,765.54, 9,339.33 and 4,113.80

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Solution

The fourth proportional to 6,765.54, 9,339.33 and 4,113.80 is: 5,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.54 : 9,339.33 = 4,113.80 : x
  2. Step 2: Convert to fraction form
    6,765.54/9,339.33 = 4,113.80/x
  3. Step 3: Cross multiply
    6,765.54x = 9,339.33 × 4,113.80
  4. Step 4: Simplify right side
    6,765.54x = 38,420,108.65
  5. Step 5: Solve for x
    x = 38,420,108.65/6,765.54
  6. Step 6: Final answer
    x = 5,678.79

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Double scale
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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.