Home / 12,747.78-19,110.30-4,954.80

Finding the Fourth Proportional to 12,747.78, 19,110.30 and 4,954.80

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Solution

The fourth proportional to 12,747.78, 19,110.30 and 4,954.80 is: 7,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.78 : 19,110.30 = 4,954.80 : x
  2. Step 2: Convert to fraction form
    12,747.78/19,110.30 = 4,954.80/x
  3. Step 3: Cross multiply
    12,747.78x = 19,110.30 × 4,954.80
  4. Step 4: Simplify right side
    12,747.78x = 94,687,714.44
  5. Step 5: Solve for x
    x = 94,687,714.44/12,747.78
  6. Step 6: Final answer
    x = 7,427.78

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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.