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Finding the Fourth Proportional to 6,007.81, 8,286.21 and 5,169.91

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Solution

The fourth proportional to 6,007.81, 8,286.21 and 5,169.91 is: 7,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,007.81 : 8,286.21 = 5,169.91 : x
  2. Step 2: Convert to fraction form
    6,007.81/8,286.21 = 5,169.91/x
  3. Step 3: Cross multiply
    6,007.81x = 8,286.21 × 5,169.91
  4. Step 4: Simplify right side
    6,007.81x = 42,838,959.94
  5. Step 5: Solve for x
    x = 42,838,959.94/6,007.81
  6. Step 6: Final answer
    x = 7,130.55

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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.