Home / 15,940.64-21,996.78-9,226.76

Finding the Fourth Proportional to 15,940.64, 21,996.78 and 9,226.76

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Solution

The fourth proportional to 15,940.64, 21,996.78 and 9,226.76 is: 12,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.64 : 21,996.78 = 9,226.76 : x
  2. Step 2: Convert to fraction form
    15,940.64/21,996.78 = 9,226.76/x
  3. Step 3: Cross multiply
    15,940.64x = 21,996.78 × 9,226.76
  4. Step 4: Simplify right side
    15,940.64x = 202,959,009.83
  5. Step 5: Solve for x
    x = 202,959,009.83/15,940.64
  6. Step 6: Final answer
    x = 12,732.17

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Double scale
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Similar ratio
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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.