Home / 18,992.12-28,479.96-6,513.37

Finding the Fourth Proportional to 18,992.12, 28,479.96 and 6,513.37

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Solution

The fourth proportional to 18,992.12, 28,479.96 and 6,513.37 is: 9,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.12 : 28,479.96 = 6,513.37 : x
  2. Step 2: Convert to fraction form
    18,992.12/28,479.96 = 6,513.37/x
  3. Step 3: Cross multiply
    18,992.12x = 28,479.96 × 6,513.37
  4. Step 4: Simplify right side
    18,992.12x = 185,500,445.87
  5. Step 5: Solve for x
    x = 185,500,445.87/18,992.12
  6. Step 6: Final answer
    x = 9,767.23

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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.