Home / 15,939.82-21,996.66-8,866.18

Finding the Fourth Proportional to 15,939.82, 21,996.66 and 8,866.18

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Solution

The fourth proportional to 15,939.82, 21,996.66 and 8,866.18 is: 12,235.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.82 : 21,996.66 = 8,866.18 : x
  2. Step 2: Convert to fraction form
    15,939.82/21,996.66 = 8,866.18/x
  3. Step 3: Cross multiply
    15,939.82x = 21,996.66 × 8,866.18
  4. Step 4: Simplify right side
    15,939.82x = 195,026,346.96
  5. Step 5: Solve for x
    x = 195,026,346.96/15,939.82
  6. Step 6: Final answer
    x = 12,235.17

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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.