Home / 13,731.75-18,949.82-7,444.13

Finding the Fourth Proportional to 13,731.75, 18,949.82 and 7,444.13

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Solution

The fourth proportional to 13,731.75, 18,949.82 and 7,444.13 is: 10,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.75 : 18,949.82 = 7,444.13 : x
  2. Step 2: Convert to fraction form
    13,731.75/18,949.82 = 7,444.13/x
  3. Step 3: Cross multiply
    13,731.75x = 18,949.82 × 7,444.13
  4. Step 4: Simplify right side
    13,731.75x = 141,064,791.59
  5. Step 5: Solve for x
    x = 141,064,791.59/13,731.75
  6. Step 6: Final answer
    x = 10,272.89

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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.