Home / 15,755.99-21,735.62-10,086.20

Finding the Fourth Proportional to 15,755.99, 21,735.62 and 10,086.20

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Solution

The fourth proportional to 15,755.99, 21,735.62 and 10,086.20 is: 13,914.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.99 : 21,735.62 = 10,086.20 : x
  2. Step 2: Convert to fraction form
    15,755.99/21,735.62 = 10,086.20/x
  3. Step 3: Cross multiply
    15,755.99x = 21,735.62 × 10,086.20
  4. Step 4: Simplify right side
    15,755.99x = 219,229,810.44
  5. Step 5: Solve for x
    x = 219,229,810.44/15,755.99
  6. Step 6: Final answer
    x = 13,914.06

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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.