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Finding the Fourth Proportional to 11,345.60, 17,025.60 and 6,665.60

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Solution

The fourth proportional to 11,345.60, 17,025.60 and 6,665.60 is: 10,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.60 : 17,025.60 = 6,665.60 : x
  2. Step 2: Convert to fraction form
    11,345.60/17,025.60 = 6,665.60/x
  3. Step 3: Cross multiply
    11,345.60x = 17,025.60 × 6,665.60
  4. Step 4: Simplify right side
    11,345.60x = 113,485,839.36
  5. Step 5: Solve for x
    x = 113,485,839.36/11,345.60
  6. Step 6: Final answer
    x = 10,002.63

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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.