Home / 8,620.35-11,897.36-5,265.09

Finding the Fourth Proportional to 8,620.35, 11,897.36 and 5,265.09

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Solution

The fourth proportional to 8,620.35, 11,897.36 and 5,265.09 is: 7,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.35 : 11,897.36 = 5,265.09 : x
  2. Step 2: Convert to fraction form
    8,620.35/11,897.36 = 5,265.09/x
  3. Step 3: Cross multiply
    8,620.35x = 11,897.36 × 5,265.09
  4. Step 4: Simplify right side
    8,620.35x = 62,640,684.33
  5. Step 5: Solve for x
    x = 62,640,684.33/8,620.35
  6. Step 6: Final answer
    x = 7,266.61

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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.