Home / 8,619.63-11,895.69-5,791.71

Finding the Fourth Proportional to 8,619.63, 11,895.69 and 5,791.71

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Solution

The fourth proportional to 8,619.63, 11,895.69 and 5,791.71 is: 7,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.63 : 11,895.69 = 5,791.71 : x
  2. Step 2: Convert to fraction form
    8,619.63/11,895.69 = 5,791.71/x
  3. Step 3: Cross multiply
    8,619.63x = 11,895.69 × 5,791.71
  4. Step 4: Simplify right side
    8,619.63x = 68,896,386.73
  5. Step 5: Solve for x
    x = 68,896,386.73/8,619.63
  6. Step 6: Final answer
    x = 7,992.96

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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.