Home / 10,219.05-15,326.64-3,198.00

Finding the Fourth Proportional to 10,219.05, 15,326.64 and 3,198.00

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Solution

The fourth proportional to 10,219.05, 15,326.64 and 3,198.00 is: 4,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.05 : 15,326.64 = 3,198.00 : x
  2. Step 2: Convert to fraction form
    10,219.05/15,326.64 = 3,198.00/x
  3. Step 3: Cross multiply
    10,219.05x = 15,326.64 × 3,198.00
  4. Step 4: Simplify right side
    10,219.05x = 49,014,652.19
  5. Step 5: Solve for x
    x = 49,014,652.19/10,219.05
  6. Step 6: Final answer
    x = 4,796.40

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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.