Home / 13,242.42-19,865.25-5,453.46

Finding the Fourth Proportional to 13,242.42, 19,865.25 and 5,453.46

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Solution

The fourth proportional to 13,242.42, 19,865.25 and 5,453.46 is: 8,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.42 : 19,865.25 = 5,453.46 : x
  2. Step 2: Convert to fraction form
    13,242.42/19,865.25 = 5,453.46/x
  3. Step 3: Cross multiply
    13,242.42x = 19,865.25 × 5,453.46
  4. Step 4: Simplify right side
    13,242.42x = 108,334,346.27
  5. Step 5: Solve for x
    x = 108,334,346.27/13,242.42
  6. Step 6: Final answer
    x = 8,180.86

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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.