Home / 12,776.78-19,169.22-4,012.58

Finding the Fourth Proportional to 12,776.78, 19,169.22 and 4,012.58

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Solution

The fourth proportional to 12,776.78, 19,169.22 and 4,012.58 is: 6,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.78 : 19,169.22 = 4,012.58 : x
  2. Step 2: Convert to fraction form
    12,776.78/19,169.22 = 4,012.58/x
  3. Step 3: Cross multiply
    12,776.78x = 19,169.22 × 4,012.58
  4. Step 4: Simplify right side
    12,776.78x = 76,918,028.79
  5. Step 5: Solve for x
    x = 76,918,028.79/12,776.78
  6. Step 6: Final answer
    x = 6,020.14

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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.