Home / 13,764-19,044.36-11,999.28

Finding the Fourth Proportional to 13,764, 19,044.36 and 11,999.28

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Solution

The fourth proportional to 13,764, 19,044.36 and 11,999.28 is: 16,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764 : 19,044.36 = 11,999.28 : x
  2. Step 2: Convert to fraction form
    13,764/19,044.36 = 11,999.28/x
  3. Step 3: Cross multiply
    13,764x = 19,044.36 × 11,999.28
  4. Step 4: Simplify right side
    13,764x = 228,518,608.06
  5. Step 5: Solve for x
    x = 228,518,608.06/13,764
  6. Step 6: Final answer
    x = 16,602.63

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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.