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Finding the Fourth Proportional to 11,350.60, 17,025.90 and 8,434.60

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Solution

The fourth proportional to 11,350.60, 17,025.90 and 8,434.60 is: 12,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.60 : 17,025.90 = 8,434.60 : x
  2. Step 2: Convert to fraction form
    11,350.60/17,025.90 = 8,434.60/x
  3. Step 3: Cross multiply
    11,350.60x = 17,025.90 × 8,434.60
  4. Step 4: Simplify right side
    11,350.60x = 143,606,656.14
  5. Step 5: Solve for x
    x = 143,606,656.14/11,350.60
  6. Step 6: Final answer
    x = 12,651.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.