Home / 19,662.64-27,131.38-11,277.52

Finding the Fourth Proportional to 19,662.64, 27,131.38 and 11,277.52

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Solution

The fourth proportional to 19,662.64, 27,131.38 and 11,277.52 is: 15,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.64 : 27,131.38 = 11,277.52 : x
  2. Step 2: Convert to fraction form
    19,662.64/27,131.38 = 11,277.52/x
  3. Step 3: Cross multiply
    19,662.64x = 27,131.38 × 11,277.52
  4. Step 4: Simplify right side
    19,662.64x = 305,974,680.58
  5. Step 5: Solve for x
    x = 305,974,680.58/19,662.64
  6. Step 6: Final answer
    x = 15,561.22

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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.