Home / 13,841.75-19,112.50-11,144.40

Finding the Fourth Proportional to 13,841.75, 19,112.50 and 11,144.40

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Solution

The fourth proportional to 13,841.75, 19,112.50 and 11,144.40 is: 15,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.75 : 19,112.50 = 11,144.40 : x
  2. Step 2: Convert to fraction form
    13,841.75/19,112.50 = 11,144.40/x
  3. Step 3: Cross multiply
    13,841.75x = 19,112.50 × 11,144.40
  4. Step 4: Simplify right side
    13,841.75x = 212,997,289.28
  5. Step 5: Solve for x
    x = 212,997,289.28/13,841.75
  6. Step 6: Final answer
    x = 15,388.03

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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.