Home / 13,929.68-20,892.29-4,066.65

Finding the Fourth Proportional to 13,929.68, 20,892.29 and 4,066.65

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Solution

The fourth proportional to 13,929.68, 20,892.29 and 4,066.65 is: 6,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.68 : 20,892.29 = 4,066.65 : x
  2. Step 2: Convert to fraction form
    13,929.68/20,892.29 = 4,066.65/x
  3. Step 3: Cross multiply
    13,929.68x = 20,892.29 × 4,066.65
  4. Step 4: Simplify right side
    13,929.68x = 84,961,610.80
  5. Step 5: Solve for x
    x = 84,961,610.80/13,929.68
  6. Step 6: Final answer
    x = 6,099.32

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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.