Home / 13,650.21-20,480.31-5,754.71

Finding the Fourth Proportional to 13,650.21, 20,480.31 and 5,754.71

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Solution

The fourth proportional to 13,650.21, 20,480.31 and 5,754.71 is: 8,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.21 : 20,480.31 = 5,754.71 : x
  2. Step 2: Convert to fraction form
    13,650.21/20,480.31 = 5,754.71/x
  3. Step 3: Cross multiply
    13,650.21x = 20,480.31 × 5,754.71
  4. Step 4: Simplify right side
    13,650.21x = 117,858,244.76
  5. Step 5: Solve for x
    x = 117,858,244.76/13,650.21
  6. Step 6: Final answer
    x = 8,634.17

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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.