Home / 13,197.12-19,795.20-5,403.84

Finding the Fourth Proportional to 13,197.12, 19,795.20 and 5,403.84

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Solution

The fourth proportional to 13,197.12, 19,795.20 and 5,403.84 is: 8,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.12 : 19,795.20 = 5,403.84 : x
  2. Step 2: Convert to fraction form
    13,197.12/19,795.20 = 5,403.84/x
  3. Step 3: Cross multiply
    13,197.12x = 19,795.20 × 5,403.84
  4. Step 4: Simplify right side
    13,197.12x = 106,970,093.57
  5. Step 5: Solve for x
    x = 106,970,093.57/13,197.12
  6. Step 6: Final answer
    x = 8,105.56

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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.