Home / 19,844.87-27,378.88-11,340.79

Finding the Fourth Proportional to 19,844.87, 27,378.88 and 11,340.79

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Solution

The fourth proportional to 19,844.87, 27,378.88 and 11,340.79 is: 15,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,844.87 : 27,378.88 = 11,340.79 : x
  2. Step 2: Convert to fraction form
    19,844.87/27,378.88 = 11,340.79/x
  3. Step 3: Cross multiply
    19,844.87x = 27,378.88 × 11,340.79
  4. Step 4: Simplify right side
    19,844.87x = 310,498,031.72
  5. Step 5: Solve for x
    x = 310,498,031.72/19,844.87
  6. Step 6: Final answer
    x = 15,646.27

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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.