Home / 13,929.84-20,892.84-5,163.54

Finding the Fourth Proportional to 13,929.84, 20,892.84 and 5,163.54

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Solution

The fourth proportional to 13,929.84, 20,892.84 and 5,163.54 is: 7,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.84 : 20,892.84 = 5,163.54 : x
  2. Step 2: Convert to fraction form
    13,929.84/20,892.84 = 5,163.54/x
  3. Step 3: Cross multiply
    13,929.84x = 20,892.84 × 5,163.54
  4. Step 4: Simplify right side
    13,929.84x = 107,881,015.05
  5. Step 5: Solve for x
    x = 107,881,015.05/13,929.84
  6. Step 6: Final answer
    x = 7,744.60

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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.