Home / 8,512.43-11,747.30-4,977.68

Finding the Fourth Proportional to 8,512.43, 11,747.30 and 4,977.68

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Solution

The fourth proportional to 8,512.43, 11,747.30 and 4,977.68 is: 6,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.43 : 11,747.30 = 4,977.68 : x
  2. Step 2: Convert to fraction form
    8,512.43/11,747.30 = 4,977.68/x
  3. Step 3: Cross multiply
    8,512.43x = 11,747.30 × 4,977.68
  4. Step 4: Simplify right side
    8,512.43x = 58,474,216.64
  5. Step 5: Solve for x
    x = 58,474,216.64/8,512.43
  6. Step 6: Final answer
    x = 6,869.28

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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.