Home / 13,560.21-20,338.20-3,700.26

Finding the Fourth Proportional to 13,560.21, 20,338.20 and 3,700.26

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Solution

The fourth proportional to 13,560.21, 20,338.20 and 3,700.26 is: 5,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.21 : 20,338.20 = 3,700.26 : x
  2. Step 2: Convert to fraction form
    13,560.21/20,338.20 = 3,700.26/x
  3. Step 3: Cross multiply
    13,560.21x = 20,338.20 × 3,700.26
  4. Step 4: Simplify right side
    13,560.21x = 75,256,627.93
  5. Step 5: Solve for x
    x = 75,256,627.93/13,560.21
  6. Step 6: Final answer
    x = 5,549.81

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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.