Home / 9,177.82-12,663.21-5,401.15

Finding the Fourth Proportional to 9,177.82, 12,663.21 and 5,401.15

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Solution

The fourth proportional to 9,177.82, 12,663.21 and 5,401.15 is: 7,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.82 : 12,663.21 = 5,401.15 : x
  2. Step 2: Convert to fraction form
    9,177.82/12,663.21 = 5,401.15/x
  3. Step 3: Cross multiply
    9,177.82x = 12,663.21 × 5,401.15
  4. Step 4: Simplify right side
    9,177.82x = 68,395,865.03
  5. Step 5: Solve for x
    x = 68,395,865.03/9,177.82
  6. Step 6: Final answer
    x = 7,452.30

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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.