Home / 19,278.14-28,916.67-6,131.30

Finding the Fourth Proportional to 19,278.14, 28,916.67 and 6,131.30

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Solution

The fourth proportional to 19,278.14, 28,916.67 and 6,131.30 is: 9,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.14 : 28,916.67 = 6,131.30 : x
  2. Step 2: Convert to fraction form
    19,278.14/28,916.67 = 6,131.30/x
  3. Step 3: Cross multiply
    19,278.14x = 28,916.67 × 6,131.30
  4. Step 4: Simplify right side
    19,278.14x = 177,296,778.77
  5. Step 5: Solve for x
    x = 177,296,778.77/19,278.14
  6. Step 6: Final answer
    x = 9,196.78

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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.