Home / 12,717.50-19,081.50-6,867.22

Finding the Fourth Proportional to 12,717.50, 19,081.50 and 6,867.22

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Solution

The fourth proportional to 12,717.50, 19,081.50 and 6,867.22 is: 10,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.50 : 19,081.50 = 6,867.22 : x
  2. Step 2: Convert to fraction form
    12,717.50/19,081.50 = 6,867.22/x
  3. Step 3: Cross multiply
    12,717.50x = 19,081.50 × 6,867.22
  4. Step 4: Simplify right side
    12,717.50x = 131,036,858.43
  5. Step 5: Solve for x
    x = 131,036,858.43/12,717.50
  6. Step 6: Final answer
    x = 10,303.66

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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.