Home / 8,664.06-12,997.20-2,818.68

Finding the Fourth Proportional to 8,664.06, 12,997.20 and 2,818.68

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Solution

The fourth proportional to 8,664.06, 12,997.20 and 2,818.68 is: 4,228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.06 : 12,997.20 = 2,818.68 : x
  2. Step 2: Convert to fraction form
    8,664.06/12,997.20 = 2,818.68/x
  3. Step 3: Cross multiply
    8,664.06x = 12,997.20 × 2,818.68
  4. Step 4: Simplify right side
    8,664.06x = 36,634,947.70
  5. Step 5: Solve for x
    x = 36,634,947.70/8,664.06
  6. Step 6: Final answer
    x = 4,228.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.