Home / 13,551.88-20,327.71-3,691.13

Finding the Fourth Proportional to 13,551.88, 20,327.71 and 3,691.13

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Solution

The fourth proportional to 13,551.88, 20,327.71 and 3,691.13 is: 5,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.88 : 20,327.71 = 3,691.13 : x
  2. Step 2: Convert to fraction form
    13,551.88/20,327.71 = 3,691.13/x
  3. Step 3: Cross multiply
    13,551.88x = 20,327.71 × 3,691.13
  4. Step 4: Simplify right side
    13,551.88x = 75,032,259.20
  5. Step 5: Solve for x
    x = 75,032,259.20/13,551.88
  6. Step 6: Final answer
    x = 5,536.67

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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.