Home / 8,289.20-11,439.27-4,512.57

Finding the Fourth Proportional to 8,289.20, 11,439.27 and 4,512.57

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Solution

The fourth proportional to 8,289.20, 11,439.27 and 4,512.57 is: 6,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.20 : 11,439.27 = 4,512.57 : x
  2. Step 2: Convert to fraction form
    8,289.20/11,439.27 = 4,512.57/x
  3. Step 3: Cross multiply
    8,289.20x = 11,439.27 × 4,512.57
  4. Step 4: Simplify right side
    8,289.20x = 51,620,506.62
  5. Step 5: Solve for x
    x = 51,620,506.62/8,289.20
  6. Step 6: Final answer
    x = 6,227.45

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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.