Home / 13,487.05-20,230.47-4,127.03

Finding the Fourth Proportional to 13,487.05, 20,230.47 and 4,127.03

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Solution

The fourth proportional to 13,487.05, 20,230.47 and 4,127.03 is: 6,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.05 : 20,230.47 = 4,127.03 : x
  2. Step 2: Convert to fraction form
    13,487.05/20,230.47 = 4,127.03/x
  3. Step 3: Cross multiply
    13,487.05x = 20,230.47 × 4,127.03
  4. Step 4: Simplify right side
    13,487.05x = 83,491,735.97
  5. Step 5: Solve for x
    x = 83,491,735.97/13,487.05
  6. Step 6: Final answer
    x = 6,190.51

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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.