Home / 8,664.47-11,942.87-6,772.72

Finding the Fourth Proportional to 8,664.47, 11,942.87 and 6,772.72

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Solution

The fourth proportional to 8,664.47, 11,942.87 and 6,772.72 is: 9,335.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.47 : 11,942.87 = 6,772.72 : x
  2. Step 2: Convert to fraction form
    8,664.47/11,942.87 = 6,772.72/x
  3. Step 3: Cross multiply
    8,664.47x = 11,942.87 × 6,772.72
  4. Step 4: Simplify right side
    8,664.47x = 80,885,676.18
  5. Step 5: Solve for x
    x = 80,885,676.18/8,664.47
  6. Step 6: Final answer
    x = 9,335.33

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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.