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Finding the Fourth Proportional to 6,959.27, 9,603.78 and 3,815.66

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Solution

The fourth proportional to 6,959.27, 9,603.78 and 3,815.66 is: 5,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.27 : 9,603.78 = 3,815.66 : x
  2. Step 2: Convert to fraction form
    6,959.27/9,603.78 = 3,815.66/x
  3. Step 3: Cross multiply
    6,959.27x = 9,603.78 × 3,815.66
  4. Step 4: Simplify right side
    6,959.27x = 36,644,759.19
  5. Step 5: Solve for x
    x = 36,644,759.19/6,959.27
  6. Step 6: Final answer
    x = 5,265.60

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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.