Home / 11,255.87-15,532.20-6,220.31

Finding the Fourth Proportional to 11,255.87, 15,532.20 and 6,220.31

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Solution

The fourth proportional to 11,255.87, 15,532.20 and 6,220.31 is: 8,583.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.87 : 15,532.20 = 6,220.31 : x
  2. Step 2: Convert to fraction form
    11,255.87/15,532.20 = 6,220.31/x
  3. Step 3: Cross multiply
    11,255.87x = 15,532.20 × 6,220.31
  4. Step 4: Simplify right side
    11,255.87x = 96,615,021.32
  5. Step 5: Solve for x
    x = 96,615,021.32/11,255.87
  6. Step 6: Final answer
    x = 8,583.53

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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.