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Finding the Fourth Proportional to 9,332.78, 13,999.08 and 2,759.09

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Solution

The fourth proportional to 9,332.78, 13,999.08 and 2,759.09 is: 4,138.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.78 : 13,999.08 = 2,759.09 : x
  2. Step 2: Convert to fraction form
    9,332.78/13,999.08 = 2,759.09/x
  3. Step 3: Cross multiply
    9,332.78x = 13,999.08 × 2,759.09
  4. Step 4: Simplify right side
    9,332.78x = 38,624,721.64
  5. Step 5: Solve for x
    x = 38,624,721.64/9,332.78
  6. Step 6: Final answer
    x = 4,138.61

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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.