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Finding the Fourth Proportional to 9,277.80, 12,805.79 and 5,738.96

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Solution

The fourth proportional to 9,277.80, 12,805.79 and 5,738.96 is: 7,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.80 : 12,805.79 = 5,738.96 : x
  2. Step 2: Convert to fraction form
    9,277.80/12,805.79 = 5,738.96/x
  3. Step 3: Cross multiply
    9,277.80x = 12,805.79 × 5,738.96
  4. Step 4: Simplify right side
    9,277.80x = 73,491,823.85
  5. Step 5: Solve for x
    x = 73,491,823.85/9,277.80
  6. Step 6: Final answer
    x = 7,921.26

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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.