Home / 15,221.09-20,966.03-10,736.96

Finding the Fourth Proportional to 15,221.09, 20,966.03 and 10,736.96

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Solution

The fourth proportional to 15,221.09, 20,966.03 and 10,736.96 is: 14,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,221.09 : 20,966.03 = 10,736.96 : x
  2. Step 2: Convert to fraction form
    15,221.09/20,966.03 = 10,736.96/x
  3. Step 3: Cross multiply
    15,221.09x = 20,966.03 × 10,736.96
  4. Step 4: Simplify right side
    15,221.09x = 225,111,266.95
  5. Step 5: Solve for x
    x = 225,111,266.95/15,221.09
  6. Step 6: Final answer
    x = 14,789.44

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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.