Home / 12,788.12-19,177.14-6,212.36

Finding the Fourth Proportional to 12,788.12, 19,177.14 and 6,212.36

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Solution

The fourth proportional to 12,788.12, 19,177.14 and 6,212.36 is: 9,316.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.12 : 19,177.14 = 6,212.36 : x
  2. Step 2: Convert to fraction form
    12,788.12/19,177.14 = 6,212.36/x
  3. Step 3: Cross multiply
    12,788.12x = 19,177.14 × 6,212.36
  4. Step 4: Simplify right side
    12,788.12x = 119,135,297.45
  5. Step 5: Solve for x
    x = 119,135,297.45/12,788.12
  6. Step 6: Final answer
    x = 9,316.09

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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.