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Finding the Fourth Proportional to 6,923.99, 9,555.11 and 3,780.18

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Solution

The fourth proportional to 6,923.99, 9,555.11 and 3,780.18 is: 5,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,923.99 : 9,555.11 = 3,780.18 : x
  2. Step 2: Convert to fraction form
    6,923.99/9,555.11 = 3,780.18/x
  3. Step 3: Cross multiply
    6,923.99x = 9,555.11 × 3,780.18
  4. Step 4: Simplify right side
    6,923.99x = 36,120,035.72
  5. Step 5: Solve for x
    x = 36,120,035.72/6,923.99
  6. Step 6: Final answer
    x = 5,216.65

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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.