Home / 13,440.70-20,163.48-5,538.82

Finding the Fourth Proportional to 13,440.70, 20,163.48 and 5,538.82

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Solution

The fourth proportional to 13,440.70, 20,163.48 and 5,538.82 is: 8,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.70 : 20,163.48 = 5,538.82 : x
  2. Step 2: Convert to fraction form
    13,440.70/20,163.48 = 5,538.82/x
  3. Step 3: Cross multiply
    13,440.70x = 20,163.48 × 5,538.82
  4. Step 4: Simplify right side
    13,440.70x = 111,681,886.29
  5. Step 5: Solve for x
    x = 111,681,886.29/13,440.70
  6. Step 6: Final answer
    x = 8,309.23

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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.