Home / 13,893.36-20,815.71-11,568.30

Finding the Fourth Proportional to 13,893.36, 20,815.71 and 11,568.30

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Solution

The fourth proportional to 13,893.36, 20,815.71 and 11,568.30 is: 17,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.36 : 20,815.71 = 11,568.30 : x
  2. Step 2: Convert to fraction form
    13,893.36/20,815.71 = 11,568.30/x
  3. Step 3: Cross multiply
    13,893.36x = 20,815.71 × 11,568.30
  4. Step 4: Simplify right side
    13,893.36x = 240,802,377.99
  5. Step 5: Solve for x
    x = 240,802,377.99/13,893.36
  6. Step 6: Final answer
    x = 17,332.19

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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.