Home / 10,643.85-15,961.14-3,621.96

Finding the Fourth Proportional to 10,643.85, 15,961.14 and 3,621.96

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Solution

The fourth proportional to 10,643.85, 15,961.14 and 3,621.96 is: 5,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.85 : 15,961.14 = 3,621.96 : x
  2. Step 2: Convert to fraction form
    10,643.85/15,961.14 = 3,621.96/x
  3. Step 3: Cross multiply
    10,643.85x = 15,961.14 × 3,621.96
  4. Step 4: Simplify right side
    10,643.85x = 57,810,610.63
  5. Step 5: Solve for x
    x = 57,810,610.63/10,643.85
  6. Step 6: Final answer
    x = 5,431.36

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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.