Home / 13,107.83-19,664.17-11,919.42

Finding the Fourth Proportional to 13,107.83, 19,664.17 and 11,919.42

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Solution

The fourth proportional to 13,107.83, 19,664.17 and 11,919.42 is: 17,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.83 : 19,664.17 = 11,919.42 : x
  2. Step 2: Convert to fraction form
    13,107.83/19,664.17 = 11,919.42/x
  3. Step 3: Cross multiply
    13,107.83x = 19,664.17 × 11,919.42
  4. Step 4: Simplify right side
    13,107.83x = 234,385,471.38
  5. Step 5: Solve for x
    x = 234,385,471.38/13,107.83
  6. Step 6: Final answer
    x = 17,881.34

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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.