Home / 13,958.19-20,933.24-5,191.02

Finding the Fourth Proportional to 13,958.19, 20,933.24 and 5,191.02

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Solution

The fourth proportional to 13,958.19, 20,933.24 and 5,191.02 is: 7,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.19 : 20,933.24 = 5,191.02 : x
  2. Step 2: Convert to fraction form
    13,958.19/20,933.24 = 5,191.02/x
  3. Step 3: Cross multiply
    13,958.19x = 20,933.24 × 5,191.02
  4. Step 4: Simplify right side
    13,958.19x = 108,664,841.55
  5. Step 5: Solve for x
    x = 108,664,841.55/13,958.19
  6. Step 6: Final answer
    x = 7,785.02

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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.