Home / 6,778.24-9,354.96-4,127.20

Finding the Fourth Proportional to 6,778.24, 9,354.96 and 4,127.20

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Solution

The fourth proportional to 6,778.24, 9,354.96 and 4,127.20 is: 5,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.24 : 9,354.96 = 4,127.20 : x
  2. Step 2: Convert to fraction form
    6,778.24/9,354.96 = 4,127.20/x
  3. Step 3: Cross multiply
    6,778.24x = 9,354.96 × 4,127.20
  4. Step 4: Simplify right side
    6,778.24x = 38,609,790.91
  5. Step 5: Solve for x
    x = 38,609,790.91/6,778.24
  6. Step 6: Final answer
    x = 5,696.14

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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.