Home / 19,726.79-27,221.91-11,552.88

Finding the Fourth Proportional to 19,726.79, 27,221.91 and 11,552.88

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Solution

The fourth proportional to 19,726.79, 27,221.91 and 11,552.88 is: 15,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.79 : 27,221.91 = 11,552.88 : x
  2. Step 2: Convert to fraction form
    19,726.79/27,221.91 = 11,552.88/x
  3. Step 3: Cross multiply
    19,726.79x = 27,221.91 × 11,552.88
  4. Step 4: Simplify right side
    19,726.79x = 314,491,459.60
  5. Step 5: Solve for x
    x = 314,491,459.60/19,726.79
  6. Step 6: Final answer
    x = 15,942.36

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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.