Home / 19,913.87-27,481.03-10,961.15

Finding the Fourth Proportional to 19,913.87, 27,481.03 and 10,961.15

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Solution

The fourth proportional to 19,913.87, 27,481.03 and 10,961.15 is: 15,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.87 : 27,481.03 = 10,961.15 : x
  2. Step 2: Convert to fraction form
    19,913.87/27,481.03 = 10,961.15/x
  3. Step 3: Cross multiply
    19,913.87x = 27,481.03 × 10,961.15
  4. Step 4: Simplify right side
    19,913.87x = 301,223,527.18
  5. Step 5: Solve for x
    x = 301,223,527.18/19,913.87
  6. Step 6: Final answer
    x = 15,126.32

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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.