Home / 8,664.47-12,998.98-2,821.53

Finding the Fourth Proportional to 8,664.47, 12,998.98 and 2,821.53

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Solution

The fourth proportional to 8,664.47, 12,998.98 and 2,821.53 is: 4,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.47 : 12,998.98 = 2,821.53 : x
  2. Step 2: Convert to fraction form
    8,664.47/12,998.98 = 2,821.53/x
  3. Step 3: Cross multiply
    8,664.47x = 12,998.98 × 2,821.53
  4. Step 4: Simplify right side
    8,664.47x = 36,677,064.31
  5. Step 5: Solve for x
    x = 36,677,064.31/8,664.47
  6. Step 6: Final answer
    x = 4,233.04

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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.