Home / 13,849.92-19,112.63-7,881.44

Finding the Fourth Proportional to 13,849.92, 19,112.63 and 7,881.44

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Solution

The fourth proportional to 13,849.92, 19,112.63 and 7,881.44 is: 10,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.92 : 19,112.63 = 7,881.44 : x
  2. Step 2: Convert to fraction form
    13,849.92/19,112.63 = 7,881.44/x
  3. Step 3: Cross multiply
    13,849.92x = 19,112.63 × 7,881.44
  4. Step 4: Simplify right side
    13,849.92x = 150,634,911.62
  5. Step 5: Solve for x
    x = 150,634,911.62/13,849.92
  6. Step 6: Final answer
    x = 10,876.23

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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.