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Finding the Fourth Proportional to 9,993.38, 14,990.14 and 3,419.62

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Solution

The fourth proportional to 9,993.38, 14,990.14 and 3,419.62 is: 5,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.38 : 14,990.14 = 3,419.62 : x
  2. Step 2: Convert to fraction form
    9,993.38/14,990.14 = 3,419.62/x
  3. Step 3: Cross multiply
    9,993.38x = 14,990.14 × 3,419.62
  4. Step 4: Simplify right side
    9,993.38x = 51,260,539.73
  5. Step 5: Solve for x
    x = 51,260,539.73/9,993.38
  6. Step 6: Final answer
    x = 5,129.45

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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.