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Finding the Fourth Proportional to 11,137.01, 15,354.91 and 7,954.12

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Solution

The fourth proportional to 11,137.01, 15,354.91 and 7,954.12 is: 10,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.01 : 15,354.91 = 7,954.12 : x
  2. Step 2: Convert to fraction form
    11,137.01/15,354.91 = 7,954.12/x
  3. Step 3: Cross multiply
    11,137.01x = 15,354.91 × 7,954.12
  4. Step 4: Simplify right side
    11,137.01x = 122,134,796.73
  5. Step 5: Solve for x
    x = 122,134,796.73/11,137.01
  6. Step 6: Final answer
    x = 10,966.57

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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.