Home / 12,664.42-18,991.12-4,867.75

Finding the Fourth Proportional to 12,664.42, 18,991.12 and 4,867.75

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Solution

The fourth proportional to 12,664.42, 18,991.12 and 4,867.75 is: 7,299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.42 : 18,991.12 = 4,867.75 : x
  2. Step 2: Convert to fraction form
    12,664.42/18,991.12 = 4,867.75/x
  3. Step 3: Cross multiply
    12,664.42x = 18,991.12 × 4,867.75
  4. Step 4: Simplify right side
    12,664.42x = 92,444,024.38
  5. Step 5: Solve for x
    x = 92,444,024.38/12,664.42
  6. Step 6: Final answer
    x = 7,299.51

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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.