Home / 15,940.89-21,998.31-8,867.25

Finding the Fourth Proportional to 15,940.89, 21,998.31 and 8,867.25

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Solution

The fourth proportional to 15,940.89, 21,998.31 and 8,867.25 is: 12,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.89 : 21,998.31 = 8,867.25 : x
  2. Step 2: Convert to fraction form
    15,940.89/21,998.31 = 8,867.25/x
  3. Step 3: Cross multiply
    15,940.89x = 21,998.31 × 8,867.25
  4. Step 4: Simplify right side
    15,940.89x = 195,064,514.35
  5. Step 5: Solve for x
    x = 195,064,514.35/15,940.89
  6. Step 6: Final answer
    x = 12,236.74

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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.