Home / 26,138.09-39,284.90-12,296.81

Finding the Fourth Proportional to 26,138.09, 39,284.90 and 12,296.81

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Solution

The fourth proportional to 26,138.09, 39,284.90 and 12,296.81 is: 18,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.09 : 39,284.90 = 12,296.81 : x
  2. Step 2: Convert to fraction form
    26,138.09/39,284.90 = 12,296.81/x
  3. Step 3: Cross multiply
    26,138.09x = 39,284.90 × 12,296.81
  4. Step 4: Simplify right side
    26,138.09x = 483,078,889.68
  5. Step 5: Solve for x
    x = 483,078,889.68/26,138.09
  6. Step 6: Final answer
    x = 18,481.80

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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.