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Finding the Fourth Proportional to 9,238.71, 13,858.07 and 3,392.79

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Solution

The fourth proportional to 9,238.71, 13,858.07 and 3,392.79 is: 5,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.71 : 13,858.07 = 3,392.79 : x
  2. Step 2: Convert to fraction form
    9,238.71/13,858.07 = 3,392.79/x
  3. Step 3: Cross multiply
    9,238.71x = 13,858.07 × 3,392.79
  4. Step 4: Simplify right side
    9,238.71x = 47,017,504.35
  5. Step 5: Solve for x
    x = 47,017,504.35/9,238.71
  6. Step 6: Final answer
    x = 5,089.19

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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.