Home / 7,431.56-10,255.68-4,074.32

Finding the Fourth Proportional to 7,431.56, 10,255.68 and 4,074.32

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Solution

The fourth proportional to 7,431.56, 10,255.68 and 4,074.32 is: 5,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.56 : 10,255.68 = 4,074.32 : x
  2. Step 2: Convert to fraction form
    7,431.56/10,255.68 = 4,074.32/x
  3. Step 3: Cross multiply
    7,431.56x = 10,255.68 × 4,074.32
  4. Step 4: Simplify right side
    7,431.56x = 41,784,922.14
  5. Step 5: Solve for x
    x = 41,784,922.14/7,431.56
  6. Step 6: Final answer
    x = 5,622.63

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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.