Home / 13,929.82-20,892.46-4,066.78

Finding the Fourth Proportional to 13,929.82, 20,892.46 and 4,066.78

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Solution

The fourth proportional to 13,929.82, 20,892.46 and 4,066.78 is: 6,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.82 : 20,892.46 = 4,066.78 : x
  2. Step 2: Convert to fraction form
    13,929.82/20,892.46 = 4,066.78/x
  3. Step 3: Cross multiply
    13,929.82x = 20,892.46 × 4,066.78
  4. Step 4: Simplify right side
    13,929.82x = 84,965,038.48
  5. Step 5: Solve for x
    x = 84,965,038.48/13,929.82
  6. Step 6: Final answer
    x = 6,099.51

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1.5x scale

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.