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Finding the Fourth Proportional to 9,675.88, 13,336.79 and 6,839.61

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Solution

The fourth proportional to 9,675.88, 13,336.79 and 6,839.61 is: 9,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,675.88 : 13,336.79 = 6,839.61 : x
  2. Step 2: Convert to fraction form
    9,675.88/13,336.79 = 6,839.61/x
  3. Step 3: Cross multiply
    9,675.88x = 13,336.79 × 6,839.61
  4. Step 4: Simplify right side
    9,675.88x = 91,218,499.42
  5. Step 5: Solve for x
    x = 91,218,499.42/9,675.88
  6. Step 6: Final answer
    x = 9,427.41

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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.