Home / 11,255.62-15,532.61-6,220.19

Finding the Fourth Proportional to 11,255.62, 15,532.61 and 6,220.19

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Solution

The fourth proportional to 11,255.62, 15,532.61 and 6,220.19 is: 8,583.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.62 : 15,532.61 = 6,220.19 : x
  2. Step 2: Convert to fraction form
    11,255.62/15,532.61 = 6,220.19/x
  3. Step 3: Cross multiply
    11,255.62x = 15,532.61 × 6,220.19
  4. Step 4: Simplify right side
    11,255.62x = 96,615,785.40
  5. Step 5: Solve for x
    x = 96,615,785.40/11,255.62
  6. Step 6: Final answer
    x = 8,583.78

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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.