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Finding the Fourth Proportional to 9,763, 13,472.92 and 5,286.75

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Solution

The fourth proportional to 9,763, 13,472.92 and 5,286.75 is: 7,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,763 : 13,472.92 = 5,286.75 : x
  2. Step 2: Convert to fraction form
    9,763/13,472.92 = 5,286.75/x
  3. Step 3: Cross multiply
    9,763x = 13,472.92 × 5,286.75
  4. Step 4: Simplify right side
    9,763x = 71,227,959.81
  5. Step 5: Solve for x
    x = 71,227,959.81/9,763
  6. Step 6: Final answer
    x = 7,295.70

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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.