Home / 18,309.80-25,269.10-10,353.44

Finding the Fourth Proportional to 18,309.80, 25,269.10 and 10,353.44

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Solution

The fourth proportional to 18,309.80, 25,269.10 and 10,353.44 is: 14,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309.80 : 25,269.10 = 10,353.44 : x
  2. Step 2: Convert to fraction form
    18,309.80/25,269.10 = 10,353.44/x
  3. Step 3: Cross multiply
    18,309.80x = 25,269.10 × 10,353.44
  4. Step 4: Simplify right side
    18,309.80x = 261,622,110.70
  5. Step 5: Solve for x
    x = 261,622,110.70/18,309.80
  6. Step 6: Final answer
    x = 14,288.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.