Home / 11,712.01-17,569.77-3,919

Finding the Fourth Proportional to 11,712.01, 17,569.77 and 3,919

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Solution

The fourth proportional to 11,712.01, 17,569.77 and 3,919 is: 5,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.01 : 17,569.77 = 3,919 : x
  2. Step 2: Convert to fraction form
    11,712.01/17,569.77 = 3,919/x
  3. Step 3: Cross multiply
    11,712.01x = 17,569.77 × 3,919
  4. Step 4: Simplify right side
    11,712.01x = 68,855,928.63
  5. Step 5: Solve for x
    x = 68,855,928.63/11,712.01
  6. Step 6: Final answer
    x = 5,879.09

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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.