Home / 8,099.28-12,121.48-4,981.26

Finding the Fourth Proportional to 8,099.28, 12,121.48 and 4,981.26

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Solution

The fourth proportional to 8,099.28, 12,121.48 and 4,981.26 is: 7,455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.28 : 12,121.48 = 4,981.26 : x
  2. Step 2: Convert to fraction form
    8,099.28/12,121.48 = 4,981.26/x
  3. Step 3: Cross multiply
    8,099.28x = 12,121.48 × 4,981.26
  4. Step 4: Simplify right side
    8,099.28x = 60,380,243.46
  5. Step 5: Solve for x
    x = 60,380,243.46/8,099.28
  6. Step 6: Final answer
    x = 7,455.01

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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.