Home / 18,998.10-28,473.46-9,134.73

Finding the Fourth Proportional to 18,998.10, 28,473.46 and 9,134.73

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Solution

The fourth proportional to 18,998.10, 28,473.46 and 9,134.73 is: 13,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.10 : 28,473.46 = 9,134.73 : x
  2. Step 2: Convert to fraction form
    18,998.10/28,473.46 = 9,134.73/x
  3. Step 3: Cross multiply
    18,998.10x = 28,473.46 × 9,134.73
  4. Step 4: Simplify right side
    18,998.10x = 260,097,346.43
  5. Step 5: Solve for x
    x = 260,097,346.43/18,998.10
  6. Step 6: Final answer
    x = 13,690.70

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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.