Home / 13,427.39-20,139.51-3,567.43

Finding the Fourth Proportional to 13,427.39, 20,139.51 and 3,567.43

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Solution

The fourth proportional to 13,427.39, 20,139.51 and 3,567.43 is: 5,350.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.39 : 20,139.51 = 3,567.43 : x
  2. Step 2: Convert to fraction form
    13,427.39/20,139.51 = 3,567.43/x
  3. Step 3: Cross multiply
    13,427.39x = 20,139.51 × 3,567.43
  4. Step 4: Simplify right side
    13,427.39x = 71,846,330.71
  5. Step 5: Solve for x
    x = 71,846,330.71/13,427.39
  6. Step 6: Final answer
    x = 5,350.73

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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.