Home / 12,546.86-18,824.91-5,149.33

Finding the Fourth Proportional to 12,546.86, 18,824.91 and 5,149.33

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Solution

The fourth proportional to 12,546.86, 18,824.91 and 5,149.33 is: 7,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.86 : 18,824.91 = 5,149.33 : x
  2. Step 2: Convert to fraction form
    12,546.86/18,824.91 = 5,149.33/x
  3. Step 3: Cross multiply
    12,546.86x = 18,824.91 × 5,149.33
  4. Step 4: Simplify right side
    12,546.86x = 96,935,673.81
  5. Step 5: Solve for x
    x = 96,935,673.81/12,546.86
  6. Step 6: Final answer
    x = 7,725.89

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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.