Home / 13,424.15-20,137.10-3,563.16

Finding the Fourth Proportional to 13,424.15, 20,137.10 and 3,563.16

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Solution

The fourth proportional to 13,424.15, 20,137.10 and 3,563.16 is: 5,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.15 : 20,137.10 = 3,563.16 : x
  2. Step 2: Convert to fraction form
    13,424.15/20,137.10 = 3,563.16/x
  3. Step 3: Cross multiply
    13,424.15x = 20,137.10 × 3,563.16
  4. Step 4: Simplify right side
    13,424.15x = 71,751,691.42
  5. Step 5: Solve for x
    x = 71,751,691.42/13,424.15
  6. Step 6: Final answer
    x = 5,344.97

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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.