Home / 13,916.66-20,860.38-6,514.88

Finding the Fourth Proportional to 13,916.66, 20,860.38 and 6,514.88

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Solution

The fourth proportional to 13,916.66, 20,860.38 and 6,514.88 is: 9,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.66 : 20,860.38 = 6,514.88 : x
  2. Step 2: Convert to fraction form
    13,916.66/20,860.38 = 6,514.88/x
  3. Step 3: Cross multiply
    13,916.66x = 20,860.38 × 6,514.88
  4. Step 4: Simplify right side
    13,916.66x = 135,902,768.15
  5. Step 5: Solve for x
    x = 135,902,768.15/13,916.66
  6. Step 6: Final answer
    x = 9,765.48

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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.