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Finding the Fourth Proportional to 16,998.60, 25,500.30 and 5,310.60

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Solution

The fourth proportional to 16,998.60, 25,500.30 and 5,310.60 is: 7,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,998.60 : 25,500.30 = 5,310.60 : x
  2. Step 2: Convert to fraction form
    16,998.60/25,500.30 = 5,310.60/x
  3. Step 3: Cross multiply
    16,998.60x = 25,500.30 × 5,310.60
  4. Step 4: Simplify right side
    16,998.60x = 135,421,893.18
  5. Step 5: Solve for x
    x = 135,421,893.18/16,998.60
  6. Step 6: Final answer
    x = 7,966.65

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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.