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Finding the Fourth Proportional to 11,161, 15,401.58 and 6,125.14

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Solution

The fourth proportional to 11,161, 15,401.58 and 6,125.14 is: 8,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161 : 15,401.58 = 6,125.14 : x
  2. Step 2: Convert to fraction form
    11,161/15,401.58 = 6,125.14/x
  3. Step 3: Cross multiply
    11,161x = 15,401.58 × 6,125.14
  4. Step 4: Simplify right side
    11,161x = 94,336,833.72
  5. Step 5: Solve for x
    x = 94,336,833.72/11,161
  6. Step 6: Final answer
    x = 8,452.36

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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.