Home / 13,647.11-20,451.42-10,861.38

Finding the Fourth Proportional to 13,647.11, 20,451.42 and 10,861.38

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Solution

The fourth proportional to 13,647.11, 20,451.42 and 10,861.38 is: 16,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.11 : 20,451.42 = 10,861.38 : x
  2. Step 2: Convert to fraction form
    13,647.11/20,451.42 = 10,861.38/x
  3. Step 3: Cross multiply
    13,647.11x = 20,451.42 × 10,861.38
  4. Step 4: Simplify right side
    13,647.11x = 222,130,644.16
  5. Step 5: Solve for x
    x = 222,130,644.16/13,647.11
  6. Step 6: Final answer
    x = 16,276.76

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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.