Home / 8,622.38-11,898.72-5,086.74

Finding the Fourth Proportional to 8,622.38, 11,898.72 and 5,086.74

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Solution

The fourth proportional to 8,622.38, 11,898.72 and 5,086.74 is: 7,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.38 : 11,898.72 = 5,086.74 : x
  2. Step 2: Convert to fraction form
    8,622.38/11,898.72 = 5,086.74/x
  3. Step 3: Cross multiply
    8,622.38x = 11,898.72 × 5,086.74
  4. Step 4: Simplify right side
    8,622.38x = 60,525,694.97
  5. Step 5: Solve for x
    x = 60,525,694.97/8,622.38
  6. Step 6: Final answer
    x = 7,019.60

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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.