Home / 8,508.17-11,739.94-4,921.80

Finding the Fourth Proportional to 8,508.17, 11,739.94 and 4,921.80

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Solution

The fourth proportional to 8,508.17, 11,739.94 and 4,921.80 is: 6,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.17 : 11,739.94 = 4,921.80 : x
  2. Step 2: Convert to fraction form
    8,508.17/11,739.94 = 4,921.80/x
  3. Step 3: Cross multiply
    8,508.17x = 11,739.94 × 4,921.80
  4. Step 4: Simplify right side
    8,508.17x = 57,781,580.36
  5. Step 5: Solve for x
    x = 57,781,580.36/8,508.17
  6. Step 6: Final answer
    x = 6,791.30

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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.