Home / 8,906.25-13,293.60-7,855.66

Finding the Fourth Proportional to 8,906.25, 13,293.60 and 7,855.66

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Solution

The fourth proportional to 8,906.25, 13,293.60 and 7,855.66 is: 11,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.25 : 13,293.60 = 7,855.66 : x
  2. Step 2: Convert to fraction form
    8,906.25/13,293.60 = 7,855.66/x
  3. Step 3: Cross multiply
    8,906.25x = 13,293.60 × 7,855.66
  4. Step 4: Simplify right side
    8,906.25x = 104,430,001.78
  5. Step 5: Solve for x
    x = 104,430,001.78/8,906.25
  6. Step 6: Final answer
    x = 11,725.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.