Home / 13,347.25-20,020.87-5,453.49

Finding the Fourth Proportional to 13,347.25, 20,020.87 and 5,453.49

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Solution

The fourth proportional to 13,347.25, 20,020.87 and 5,453.49 is: 8,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.25 : 20,020.87 = 5,453.49 : x
  2. Step 2: Convert to fraction form
    13,347.25/20,020.87 = 5,453.49/x
  3. Step 3: Cross multiply
    13,347.25x = 20,020.87 × 5,453.49
  4. Step 4: Simplify right side
    13,347.25x = 109,183,614.34
  5. Step 5: Solve for x
    x = 109,183,614.34/13,347.25
  6. Step 6: Final answer
    x = 8,180.23

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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.