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Finding the Fourth Proportional to 9,341.88, 12,891.60 and 5,150.14

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Solution

The fourth proportional to 9,341.88, 12,891.60 and 5,150.14 is: 7,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.88 : 12,891.60 = 5,150.14 : x
  2. Step 2: Convert to fraction form
    9,341.88/12,891.60 = 5,150.14/x
  3. Step 3: Cross multiply
    9,341.88x = 12,891.60 × 5,150.14
  4. Step 4: Simplify right side
    9,341.88x = 66,393,544.82
  5. Step 5: Solve for x
    x = 66,393,544.82/9,341.88
  6. Step 6: Final answer
    x = 7,107.09

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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.