Home / 15,882.22-21,921.45-10,786.36

Finding the Fourth Proportional to 15,882.22, 21,921.45 and 10,786.36

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Solution

The fourth proportional to 15,882.22, 21,921.45 and 10,786.36 is: 14,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.22 : 21,921.45 = 10,786.36 : x
  2. Step 2: Convert to fraction form
    15,882.22/21,921.45 = 10,786.36/x
  3. Step 3: Cross multiply
    15,882.22x = 21,921.45 × 10,786.36
  4. Step 4: Simplify right side
    15,882.22x = 236,452,657.95
  5. Step 5: Solve for x
    x = 236,452,657.95/15,882.22
  6. Step 6: Final answer
    x = 14,887.88

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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.