Home / 10,211.22-15,314.74-3,190.28

Finding the Fourth Proportional to 10,211.22, 15,314.74 and 3,190.28

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Solution

The fourth proportional to 10,211.22, 15,314.74 and 3,190.28 is: 4,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.22 : 15,314.74 = 3,190.28 : x
  2. Step 2: Convert to fraction form
    10,211.22/15,314.74 = 3,190.28/x
  3. Step 3: Cross multiply
    10,211.22x = 15,314.74 × 3,190.28
  4. Step 4: Simplify right side
    10,211.22x = 48,858,224.18
  5. Step 5: Solve for x
    x = 48,858,224.18/10,211.22
  6. Step 6: Final answer
    x = 4,784.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.