Home / 8,289.34-11,439.48-4,512.72

Finding the Fourth Proportional to 8,289.34, 11,439.48 and 4,512.72

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Solution

The fourth proportional to 8,289.34, 11,439.48 and 4,512.72 is: 6,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.34 : 11,439.48 = 4,512.72 : x
  2. Step 2: Convert to fraction form
    8,289.34/11,439.48 = 4,512.72/x
  3. Step 3: Cross multiply
    8,289.34x = 11,439.48 × 4,512.72
  4. Step 4: Simplify right side
    8,289.34x = 51,623,170.19
  5. Step 5: Solve for x
    x = 51,623,170.19/8,289.34
  6. Step 6: Final answer
    x = 6,227.66

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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.