Home / 12,581.54-18,877.69-4,262.43

Finding the Fourth Proportional to 12,581.54, 18,877.69 and 4,262.43

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Solution

The fourth proportional to 12,581.54, 18,877.69 and 4,262.43 is: 6,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.54 : 18,877.69 = 4,262.43 : x
  2. Step 2: Convert to fraction form
    12,581.54/18,877.69 = 4,262.43/x
  3. Step 3: Cross multiply
    12,581.54x = 18,877.69 × 4,262.43
  4. Step 4: Simplify right side
    12,581.54x = 80,464,832.19
  5. Step 5: Solve for x
    x = 80,464,832.19/12,581.54
  6. Step 6: Final answer
    x = 6,395.47

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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.