Home / 10,985.12-16,474.27-3,964.22

Finding the Fourth Proportional to 10,985.12, 16,474.27 and 3,964.22

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Solution

The fourth proportional to 10,985.12, 16,474.27 and 3,964.22 is: 5,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.12 : 16,474.27 = 3,964.22 : x
  2. Step 2: Convert to fraction form
    10,985.12/16,474.27 = 3,964.22/x
  3. Step 3: Cross multiply
    10,985.12x = 16,474.27 × 3,964.22
  4. Step 4: Simplify right side
    10,985.12x = 65,307,610.80
  5. Step 5: Solve for x
    x = 65,307,610.80/10,985.12
  6. Step 6: Final answer
    x = 5,945.10

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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.