Home / 11,542.58-15,941.90-7,759.18

Finding the Fourth Proportional to 11,542.58, 15,941.90 and 7,759.18

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Solution

The fourth proportional to 11,542.58, 15,941.90 and 7,759.18 is: 10,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,542.58 : 15,941.90 = 7,759.18 : x
  2. Step 2: Convert to fraction form
    11,542.58/15,941.90 = 7,759.18/x
  3. Step 3: Cross multiply
    11,542.58x = 15,941.90 × 7,759.18
  4. Step 4: Simplify right side
    11,542.58x = 123,696,112.16
  5. Step 5: Solve for x
    x = 123,696,112.16/11,542.58
  6. Step 6: Final answer
    x = 10,716.51

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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.