Home / 15,755.43-21,743.40-9,041

Finding the Fourth Proportional to 15,755.43, 21,743.40 and 9,041

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Solution

The fourth proportional to 15,755.43, 21,743.40 and 9,041 is: 12,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,755.43 : 21,743.40 = 9,041 : x
  2. Step 2: Convert to fraction form
    15,755.43/21,743.40 = 9,041/x
  3. Step 3: Cross multiply
    15,755.43x = 21,743.40 × 9,041
  4. Step 4: Simplify right side
    15,755.43x = 196,582,079.40
  5. Step 5: Solve for x
    x = 196,582,079.40/15,755.43
  6. Step 6: Final answer
    x = 12,477.10

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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.