Home / 36,146.78-54,209.74-12,453.36

Finding the Fourth Proportional to 36,146.78, 54,209.74 and 12,453.36

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Solution

The fourth proportional to 36,146.78, 54,209.74 and 12,453.36 is: 18,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,146.78 : 54,209.74 = 12,453.36 : x
  2. Step 2: Convert to fraction form
    36,146.78/54,209.74 = 12,453.36/x
  3. Step 3: Cross multiply
    36,146.78x = 54,209.74 × 12,453.36
  4. Step 4: Simplify right side
    36,146.78x = 675,093,407.73
  5. Step 5: Solve for x
    x = 675,093,407.73/36,146.78
  6. Step 6: Final answer
    x = 18,676.45

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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.