Home / 13,427.11-20,139.08-3,567.15

Finding the Fourth Proportional to 13,427.11, 20,139.08 and 3,567.15

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Solution

The fourth proportional to 13,427.11, 20,139.08 and 3,567.15 is: 5,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.11 : 20,139.08 = 3,567.15 : x
  2. Step 2: Convert to fraction form
    13,427.11/20,139.08 = 3,567.15/x
  3. Step 3: Cross multiply
    13,427.11x = 20,139.08 × 3,567.15
  4. Step 4: Simplify right side
    13,427.11x = 71,839,101.39
  5. Step 5: Solve for x
    x = 71,839,101.39/13,427.11
  6. Step 6: Final answer
    x = 5,350.30

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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.