Home / 12,961.13-19,446.24-6,391.92

Finding the Fourth Proportional to 12,961.13, 19,446.24 and 6,391.92

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Solution

The fourth proportional to 12,961.13, 19,446.24 and 6,391.92 is: 9,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.13 : 19,446.24 = 6,391.92 : x
  2. Step 2: Convert to fraction form
    12,961.13/19,446.24 = 6,391.92/x
  3. Step 3: Cross multiply
    12,961.13x = 19,446.24 × 6,391.92
  4. Step 4: Simplify right side
    12,961.13x = 124,298,907.27
  5. Step 5: Solve for x
    x = 124,298,907.27/12,961.13
  6. Step 6: Final answer
    x = 9,590.13

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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.