Home / 12,845.38-19,141.07-11,537.20

Finding the Fourth Proportional to 12,845.38, 19,141.07 and 11,537.20

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Solution

The fourth proportional to 12,845.38, 19,141.07 and 11,537.20 is: 17,191.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.38 : 19,141.07 = 11,537.20 : x
  2. Step 2: Convert to fraction form
    12,845.38/19,141.07 = 11,537.20/x
  3. Step 3: Cross multiply
    12,845.38x = 19,141.07 × 11,537.20
  4. Step 4: Simplify right side
    12,845.38x = 220,834,352.80
  5. Step 5: Solve for x
    x = 220,834,352.80/12,845.38
  6. Step 6: Final answer
    x = 17,191.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.