Home / 18,942.62-26,129.98-11,856.74

Finding the Fourth Proportional to 18,942.62, 26,129.98 and 11,856.74

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Solution

The fourth proportional to 18,942.62, 26,129.98 and 11,856.74 is: 16,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.62 : 26,129.98 = 11,856.74 : x
  2. Step 2: Convert to fraction form
    18,942.62/26,129.98 = 11,856.74/x
  3. Step 3: Cross multiply
    18,942.62x = 26,129.98 × 11,856.74
  4. Step 4: Simplify right side
    18,942.62x = 309,816,379.07
  5. Step 5: Solve for x
    x = 309,816,379.07/18,942.62
  6. Step 6: Final answer
    x = 16,355.52

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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.