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Finding the Fourth Proportional to 9,235.62, 13,856.67 and 7,859.43

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Solution

The fourth proportional to 9,235.62, 13,856.67 and 7,859.43 is: 11,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,235.62 : 13,856.67 = 7,859.43 : x
  2. Step 2: Convert to fraction form
    9,235.62/13,856.67 = 7,859.43/x
  3. Step 3: Cross multiply
    9,235.62x = 13,856.67 × 7,859.43
  4. Step 4: Simplify right side
    9,235.62x = 108,905,527.90
  5. Step 5: Solve for x
    x = 108,905,527.90/9,235.62
  6. Step 6: Final answer
    x = 11,791.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.