Home / 17,221.76-23,759.91-11,256.87

Finding the Fourth Proportional to 17,221.76, 23,759.91 and 11,256.87

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Solution

The fourth proportional to 17,221.76, 23,759.91 and 11,256.87 is: 15,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,221.76 : 23,759.91 = 11,256.87 : x
  2. Step 2: Convert to fraction form
    17,221.76/23,759.91 = 11,256.87/x
  3. Step 3: Cross multiply
    17,221.76x = 23,759.91 × 11,256.87
  4. Step 4: Simplify right side
    17,221.76x = 267,462,218.08
  5. Step 5: Solve for x
    x = 267,462,218.08/17,221.76
  6. Step 6: Final answer
    x = 15,530.48

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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.