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Finding the Fourth Proportional to 8,959.25, 12,365.00 and 6,449.66

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Solution

The fourth proportional to 8,959.25, 12,365.00 and 6,449.66 is: 8,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.25 : 12,365.00 = 6,449.66 : x
  2. Step 2: Convert to fraction form
    8,959.25/12,365.00 = 6,449.66/x
  3. Step 3: Cross multiply
    8,959.25x = 12,365.00 × 6,449.66
  4. Step 4: Simplify right side
    8,959.25x = 79,749,951.83
  5. Step 5: Solve for x
    x = 79,749,951.83/8,959.25
  6. Step 6: Final answer
    x = 8,901.41

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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.