Home / 6,763.15-9,330.55-3,930.06

Finding the Fourth Proportional to 6,763.15, 9,330.55 and 3,930.06

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Solution

The fourth proportional to 6,763.15, 9,330.55 and 3,930.06 is: 5,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,763.15 : 9,330.55 = 3,930.06 : x
  2. Step 2: Convert to fraction form
    6,763.15/9,330.55 = 3,930.06/x
  3. Step 3: Cross multiply
    6,763.15x = 9,330.55 × 3,930.06
  4. Step 4: Simplify right side
    6,763.15x = 36,669,621.33
  5. Step 5: Solve for x
    x = 36,669,621.33/6,763.15
  6. Step 6: Final answer
    x = 5,421.97

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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.