Home / 13,199.45-19,799.19-3,965.45

Finding the Fourth Proportional to 13,199.45, 19,799.19 and 3,965.45

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Solution

The fourth proportional to 13,199.45, 19,799.19 and 3,965.45 is: 5,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.45 : 19,799.19 = 3,965.45 : x
  2. Step 2: Convert to fraction form
    13,199.45/19,799.19 = 3,965.45/x
  3. Step 3: Cross multiply
    13,199.45x = 19,799.19 × 3,965.45
  4. Step 4: Simplify right side
    13,199.45x = 78,512,697.99
  5. Step 5: Solve for x
    x = 78,512,697.99/13,199.45
  6. Step 6: Final answer
    x = 5,948.18

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Similar ratio
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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.