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Finding the Fourth Proportional to 6,758.74, 9,321.93 and 5,816.11

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Solution

The fourth proportional to 6,758.74, 9,321.93 and 5,816.11 is: 8,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,758.74 : 9,321.93 = 5,816.11 : x
  2. Step 2: Convert to fraction form
    6,758.74/9,321.93 = 5,816.11/x
  3. Step 3: Cross multiply
    6,758.74x = 9,321.93 × 5,816.11
  4. Step 4: Simplify right side
    6,758.74x = 54,217,370.29
  5. Step 5: Solve for x
    x = 54,217,370.29/6,758.74
  6. Step 6: Final answer
    x = 8,021.82

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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.