Home / 13,940.48-19,156-11,141.12

Finding the Fourth Proportional to 13,940.48, 19,156 and 11,141.12

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Solution

The fourth proportional to 13,940.48, 19,156 and 11,141.12 is: 15,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.48 : 19,156 = 11,141.12 : x
  2. Step 2: Convert to fraction form
    13,940.48/19,156 = 11,141.12/x
  3. Step 3: Cross multiply
    13,940.48x = 19,156 × 11,141.12
  4. Step 4: Simplify right side
    13,940.48x = 213,419,294.72
  5. Step 5: Solve for x
    x = 213,419,294.72/13,940.48
  6. Step 6: Final answer
    x = 15,309.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.