Home / 11,557.22-15,953.49-7,791.12

Finding the Fourth Proportional to 11,557.22, 15,953.49 and 7,791.12

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Solution

The fourth proportional to 11,557.22, 15,953.49 and 7,791.12 is: 10,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,557.22 : 15,953.49 = 7,791.12 : x
  2. Step 2: Convert to fraction form
    11,557.22/15,953.49 = 7,791.12/x
  3. Step 3: Cross multiply
    11,557.22x = 15,953.49 × 7,791.12
  4. Step 4: Simplify right side
    11,557.22x = 124,295,555.01
  5. Step 5: Solve for x
    x = 124,295,555.01/11,557.22
  6. Step 6: Final answer
    x = 10,754.80

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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.