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Finding the Fourth Proportional to 9,615.38, 13,281 and 6,958.58

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Solution

The fourth proportional to 9,615.38, 13,281 and 6,958.58 is: 9,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,615.38 : 13,281 = 6,958.58 : x
  2. Step 2: Convert to fraction form
    9,615.38/13,281 = 6,958.58/x
  3. Step 3: Cross multiply
    9,615.38x = 13,281 × 6,958.58
  4. Step 4: Simplify right side
    9,615.38x = 92,416,900.98
  5. Step 5: Solve for x
    x = 92,416,900.98/9,615.38
  6. Step 6: Final answer
    x = 9,611.36

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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.