Home / 12,163.68-18,248.40-6,318.96

Finding the Fourth Proportional to 12,163.68, 18,248.40 and 6,318.96

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Solution

The fourth proportional to 12,163.68, 18,248.40 and 6,318.96 is: 9,479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.68 : 18,248.40 = 6,318.96 : x
  2. Step 2: Convert to fraction form
    12,163.68/18,248.40 = 6,318.96/x
  3. Step 3: Cross multiply
    12,163.68x = 18,248.40 × 6,318.96
  4. Step 4: Simplify right side
    12,163.68x = 115,310,909.66
  5. Step 5: Solve for x
    x = 115,310,909.66/12,163.68
  6. Step 6: Final answer
    x = 9,479.94

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1.5x scale

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.