Home / 10,198.80-15,298.38-2,803.21

Finding the Fourth Proportional to 10,198.80, 15,298.38 and 2,803.21

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Solution

The fourth proportional to 10,198.80, 15,298.38 and 2,803.21 is: 4,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.80 : 15,298.38 = 2,803.21 : x
  2. Step 2: Convert to fraction form
    10,198.80/15,298.38 = 2,803.21/x
  3. Step 3: Cross multiply
    10,198.80x = 15,298.38 × 2,803.21
  4. Step 4: Simplify right side
    10,198.80x = 42,884,533.55
  5. Step 5: Solve for x
    x = 42,884,533.55/10,198.80
  6. Step 6: Final answer
    x = 4,204.86

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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.