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Finding the Fourth Proportional to 17,989.82, 26,984.90 and 6,893.86

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Solution

The fourth proportional to 17,989.82, 26,984.90 and 6,893.86 is: 10,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.82 : 26,984.90 = 6,893.86 : x
  2. Step 2: Convert to fraction form
    17,989.82/26,984.90 = 6,893.86/x
  3. Step 3: Cross multiply
    17,989.82x = 26,984.90 × 6,893.86
  4. Step 4: Simplify right side
    17,989.82x = 186,030,084.31
  5. Step 5: Solve for x
    x = 186,030,084.31/17,989.82
  6. Step 6: Final answer
    x = 10,340.85

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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.