Home / 12,021.73-18,001.05-8,492.65

Finding the Fourth Proportional to 12,021.73, 18,001.05 and 8,492.65

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Solution

The fourth proportional to 12,021.73, 18,001.05 and 8,492.65 is: 12,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.73 : 18,001.05 = 8,492.65 : x
  2. Step 2: Convert to fraction form
    12,021.73/18,001.05 = 8,492.65/x
  3. Step 3: Cross multiply
    12,021.73x = 18,001.05 × 8,492.65
  4. Step 4: Simplify right side
    12,021.73x = 152,876,617.28
  5. Step 5: Solve for x
    x = 152,876,617.28/12,021.73
  6. Step 6: Final answer
    x = 12,716.69

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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.