Home / 8,099.60-12,145.80-3,718.48

Finding the Fourth Proportional to 8,099.60, 12,145.80 and 3,718.48

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Solution

The fourth proportional to 8,099.60, 12,145.80 and 3,718.48 is: 5,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.60 : 12,145.80 = 3,718.48 : x
  2. Step 2: Convert to fraction form
    8,099.60/12,145.80 = 3,718.48/x
  3. Step 3: Cross multiply
    8,099.60x = 12,145.80 × 3,718.48
  4. Step 4: Simplify right side
    8,099.60x = 45,163,914.38
  5. Step 5: Solve for x
    x = 45,163,914.38/8,099.60
  6. Step 6: Final answer
    x = 5,576.07

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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.