Home / 13,321.11-19,968.30-8,928.48

Finding the Fourth Proportional to 13,321.11, 19,968.30 and 8,928.48

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Solution

The fourth proportional to 13,321.11, 19,968.30 and 8,928.48 is: 13,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.11 : 19,968.30 = 8,928.48 : x
  2. Step 2: Convert to fraction form
    13,321.11/19,968.30 = 8,928.48/x
  3. Step 3: Cross multiply
    13,321.11x = 19,968.30 × 8,928.48
  4. Step 4: Simplify right side
    13,321.11x = 178,286,567.18
  5. Step 5: Solve for x
    x = 178,286,567.18/13,321.11
  6. Step 6: Final answer
    x = 13,383.76

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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.