Home / 8,619.76-11,895.86-5,791.87

Finding the Fourth Proportional to 8,619.76, 11,895.86 and 5,791.87

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Solution

The fourth proportional to 8,619.76, 11,895.86 and 5,791.87 is: 7,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.76 : 11,895.86 = 5,791.87 : x
  2. Step 2: Convert to fraction form
    8,619.76/11,895.86 = 5,791.87/x
  3. Step 3: Cross multiply
    8,619.76x = 11,895.86 × 5,791.87
  4. Step 4: Simplify right side
    8,619.76x = 68,899,186.22
  5. Step 5: Solve for x
    x = 68,899,186.22/8,619.76
  6. Step 6: Final answer
    x = 7,993.17

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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.