Home / 12,318.24-16,998.96-6,729.12

Finding the Fourth Proportional to 12,318.24, 16,998.96 and 6,729.12

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Solution

The fourth proportional to 12,318.24, 16,998.96 and 6,729.12 is: 9,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.24 : 16,998.96 = 6,729.12 : x
  2. Step 2: Convert to fraction form
    12,318.24/16,998.96 = 6,729.12/x
  3. Step 3: Cross multiply
    12,318.24x = 16,998.96 × 6,729.12
  4. Step 4: Simplify right side
    12,318.24x = 114,388,041.72
  5. Step 5: Solve for x
    x = 114,388,041.72/12,318.24
  6. Step 6: Final answer
    x = 9,286.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.