Home / 6,821.12-10,231.68-4,512.08

Finding the Fourth Proportional to 6,821.12, 10,231.68 and 4,512.08

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Solution

The fourth proportional to 6,821.12, 10,231.68 and 4,512.08 is: 6,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.12 : 10,231.68 = 4,512.08 : x
  2. Step 2: Convert to fraction form
    6,821.12/10,231.68 = 4,512.08/x
  3. Step 3: Cross multiply
    6,821.12x = 10,231.68 × 4,512.08
  4. Step 4: Simplify right side
    6,821.12x = 46,166,158.69
  5. Step 5: Solve for x
    x = 46,166,158.69/6,821.12
  6. Step 6: Final answer
    x = 6,768.12

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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.