Home / 13,650.88-20,476.32-3,790.24

Finding the Fourth Proportional to 13,650.88, 20,476.32 and 3,790.24

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Solution

The fourth proportional to 13,650.88, 20,476.32 and 3,790.24 is: 5,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.88 : 20,476.32 = 3,790.24 : x
  2. Step 2: Convert to fraction form
    13,650.88/20,476.32 = 3,790.24/x
  3. Step 3: Cross multiply
    13,650.88x = 20,476.32 × 3,790.24
  4. Step 4: Simplify right side
    13,650.88x = 77,610,167.12
  5. Step 5: Solve for x
    x = 77,610,167.12/13,650.88
  6. Step 6: Final answer
    x = 5,685.36

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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.