Home / 8,214.48-12,315.42-2,664.46

Finding the Fourth Proportional to 8,214.48, 12,315.42 and 2,664.46

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Solution

The fourth proportional to 8,214.48, 12,315.42 and 2,664.46 is: 3,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.48 : 12,315.42 = 2,664.46 : x
  2. Step 2: Convert to fraction form
    8,214.48/12,315.42 = 2,664.46/x
  3. Step 3: Cross multiply
    8,214.48x = 12,315.42 × 2,664.46
  4. Step 4: Simplify right side
    8,214.48x = 32,813,943.97
  5. Step 5: Solve for x
    x = 32,813,943.97/8,214.48
  6. Step 6: Final answer
    x = 3,994.65

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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.