Home / 8,289.66-11,439.39-4,512.75

Finding the Fourth Proportional to 8,289.66, 11,439.39 and 4,512.75

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Solution

The fourth proportional to 8,289.66, 11,439.39 and 4,512.75 is: 6,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.66 : 11,439.39 = 4,512.75 : x
  2. Step 2: Convert to fraction form
    8,289.66/11,439.39 = 4,512.75/x
  3. Step 3: Cross multiply
    8,289.66x = 11,439.39 × 4,512.75
  4. Step 4: Simplify right side
    8,289.66x = 51,623,090.30
  5. Step 5: Solve for x
    x = 51,623,090.30/8,289.66
  6. Step 6: Final answer
    x = 6,227.40

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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.