Home / 8,142.87-11,240.06-4,954.71

Finding the Fourth Proportional to 8,142.87, 11,240.06 and 4,954.71

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Solution

The fourth proportional to 8,142.87, 11,240.06 and 4,954.71 is: 6,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.87 : 11,240.06 = 4,954.71 : x
  2. Step 2: Convert to fraction form
    8,142.87/11,240.06 = 4,954.71/x
  3. Step 3: Cross multiply
    8,142.87x = 11,240.06 × 4,954.71
  4. Step 4: Simplify right side
    8,142.87x = 55,691,212.91
  5. Step 5: Solve for x
    x = 55,691,212.91/8,142.87
  6. Step 6: Final answer
    x = 6,839.26

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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.