Home / 18,219.92-25,143.72-10,262.12

Finding the Fourth Proportional to 18,219.92, 25,143.72 and 10,262.12

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Solution

The fourth proportional to 18,219.92, 25,143.72 and 10,262.12 is: 14,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.92 : 25,143.72 = 10,262.12 : x
  2. Step 2: Convert to fraction form
    18,219.92/25,143.72 = 10,262.12/x
  3. Step 3: Cross multiply
    18,219.92x = 25,143.72 × 10,262.12
  4. Step 4: Simplify right side
    18,219.92x = 258,027,871.89
  5. Step 5: Solve for x
    x = 258,027,871.89/18,219.92
  6. Step 6: Final answer
    x = 14,161.86

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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.