Home / 9,990.25-14,982.80-2,968.61

Finding the Fourth Proportional to 9,990.25, 14,982.80 and 2,968.61

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Solution

The fourth proportional to 9,990.25, 14,982.80 and 2,968.61 is: 4,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.25 : 14,982.80 = 2,968.61 : x
  2. Step 2: Convert to fraction form
    9,990.25/14,982.80 = 2,968.61/x
  3. Step 3: Cross multiply
    9,990.25x = 14,982.80 × 2,968.61
  4. Step 4: Simplify right side
    9,990.25x = 44,478,000.15
  5. Step 5: Solve for x
    x = 44,478,000.15/9,990.25
  6. Step 6: Final answer
    x = 4,452.14

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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.