Home / 8,629.20-11,905.38-5,089.86

Finding the Fourth Proportional to 8,629.20, 11,905.38 and 5,089.86

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Solution

The fourth proportional to 8,629.20, 11,905.38 and 5,089.86 is: 7,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.20 : 11,905.38 = 5,089.86 : x
  2. Step 2: Convert to fraction form
    8,629.20/11,905.38 = 5,089.86/x
  3. Step 3: Cross multiply
    8,629.20x = 11,905.38 × 5,089.86
  4. Step 4: Simplify right side
    8,629.20x = 60,596,717.45
  5. Step 5: Solve for x
    x = 60,596,717.45/8,629.20
  6. Step 6: Final answer
    x = 7,022.29

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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.