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Finding the Fourth Proportional to 8,697.63, 11,998.29 and 5,505.54

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Solution

The fourth proportional to 8,697.63, 11,998.29 and 5,505.54 is: 7,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.63 : 11,998.29 = 5,505.54 : x
  2. Step 2: Convert to fraction form
    8,697.63/11,998.29 = 5,505.54/x
  3. Step 3: Cross multiply
    8,697.63x = 11,998.29 × 5,505.54
  4. Step 4: Simplify right side
    8,697.63x = 66,057,065.53
  5. Step 5: Solve for x
    x = 66,057,065.53/8,697.63
  6. Step 6: Final answer
    x = 7,594.84

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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.