Home / 15,940.89-21,999.24-9,226.80

Finding the Fourth Proportional to 15,940.89, 21,999.24 and 9,226.80

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Solution

The fourth proportional to 15,940.89, 21,999.24 and 9,226.80 is: 12,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.89 : 21,999.24 = 9,226.80 : x
  2. Step 2: Convert to fraction form
    15,940.89/21,999.24 = 9,226.80/x
  3. Step 3: Cross multiply
    15,940.89x = 21,999.24 × 9,226.80
  4. Step 4: Simplify right side
    15,940.89x = 202,982,587.63
  5. Step 5: Solve for x
    x = 202,982,587.63/15,940.89
  6. Step 6: Final answer
    x = 12,733.45

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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.