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Finding the Fourth Proportional to 6,959.03, 9,604.91 and 6,398.61

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Solution

The fourth proportional to 6,959.03, 9,604.91 and 6,398.61 is: 8,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.03 : 9,604.91 = 6,398.61 : x
  2. Step 2: Convert to fraction form
    6,959.03/9,604.91 = 6,398.61/x
  3. Step 3: Cross multiply
    6,959.03x = 9,604.91 × 6,398.61
  4. Step 4: Simplify right side
    6,959.03x = 61,458,073.18
  5. Step 5: Solve for x
    x = 61,458,073.18/6,959.03
  6. Step 6: Final answer
    x = 8,831.41

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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.