Home / 10,204.20-15,305.90-2,808.50

Finding the Fourth Proportional to 10,204.20, 15,305.90 and 2,808.50

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Solution

The fourth proportional to 10,204.20, 15,305.90 and 2,808.50 is: 4,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.20 : 15,305.90 = 2,808.50 : x
  2. Step 2: Convert to fraction form
    10,204.20/15,305.90 = 2,808.50/x
  3. Step 3: Cross multiply
    10,204.20x = 15,305.90 × 2,808.50
  4. Step 4: Simplify right side
    10,204.20x = 42,986,529.58
  5. Step 5: Solve for x
    x = 42,986,529.58/10,204.20
  6. Step 6: Final answer
    x = 4,212.63

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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.