Home / 18,992.08-28,487.76-11,149.12

Finding the Fourth Proportional to 18,992.08, 28,487.76 and 11,149.12

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Solution

The fourth proportional to 18,992.08, 28,487.76 and 11,149.12 is: 16,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.08 : 28,487.76 = 11,149.12 : x
  2. Step 2: Convert to fraction form
    18,992.08/28,487.76 = 11,149.12/x
  3. Step 3: Cross multiply
    18,992.08x = 28,487.76 × 11,149.12
  4. Step 4: Simplify right side
    18,992.08x = 317,613,454.77
  5. Step 5: Solve for x
    x = 317,613,454.77/18,992.08
  6. Step 6: Final answer
    x = 16,723.47

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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.