Home / 13,943.84-19,223.88-11,945.84

Finding the Fourth Proportional to 13,943.84, 19,223.88 and 11,945.84

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Solution

The fourth proportional to 13,943.84, 19,223.88 and 11,945.84 is: 16,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.84 : 19,223.88 = 11,945.84 : x
  2. Step 2: Convert to fraction form
    13,943.84/19,223.88 = 11,945.84/x
  3. Step 3: Cross multiply
    13,943.84x = 19,223.88 × 11,945.84
  4. Step 4: Simplify right side
    13,943.84x = 229,645,394.66
  5. Step 5: Solve for x
    x = 229,645,394.66/13,943.84
  6. Step 6: Final answer
    x = 16,469.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.