Home / 8,512.80-11,747.40-4,977.96

Finding the Fourth Proportional to 8,512.80, 11,747.40 and 4,977.96

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Solution

The fourth proportional to 8,512.80, 11,747.40 and 4,977.96 is: 6,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.80 : 11,747.40 = 4,977.96 : x
  2. Step 2: Convert to fraction form
    8,512.80/11,747.40 = 4,977.96/x
  3. Step 3: Cross multiply
    8,512.80x = 11,747.40 × 4,977.96
  4. Step 4: Simplify right side
    8,512.80x = 58,478,087.30
  5. Step 5: Solve for x
    x = 58,478,087.30/8,512.80
  6. Step 6: Final answer
    x = 6,869.43

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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.