Home / 12,961.69-19,442.57-8,791.37

Finding the Fourth Proportional to 12,961.69, 19,442.57 and 8,791.37

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Solution

The fourth proportional to 12,961.69, 19,442.57 and 8,791.37 is: 13,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.69 : 19,442.57 = 8,791.37 : x
  2. Step 2: Convert to fraction form
    12,961.69/19,442.57 = 8,791.37/x
  3. Step 3: Cross multiply
    12,961.69x = 19,442.57 × 8,791.37
  4. Step 4: Simplify right side
    12,961.69x = 170,926,758.36
  5. Step 5: Solve for x
    x = 170,926,758.36/12,961.69
  6. Step 6: Final answer
    x = 13,187.08

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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.