Home / 8,172.36-12,260.25-2,626.07

Finding the Fourth Proportional to 8,172.36, 12,260.25 and 2,626.07

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Solution

The fourth proportional to 8,172.36, 12,260.25 and 2,626.07 is: 3,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.36 : 12,260.25 = 2,626.07 : x
  2. Step 2: Convert to fraction form
    8,172.36/12,260.25 = 2,626.07/x
  3. Step 3: Cross multiply
    8,172.36x = 12,260.25 × 2,626.07
  4. Step 4: Simplify right side
    8,172.36x = 32,196,213.42
  5. Step 5: Solve for x
    x = 32,196,213.42/8,172.36
  6. Step 6: Final answer
    x = 3,939.65

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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.