Home / 8,523.21-12,785.37-2,680.05

Finding the Fourth Proportional to 8,523.21, 12,785.37 and 2,680.05

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Solution

The fourth proportional to 8,523.21, 12,785.37 and 2,680.05 is: 4,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.21 : 12,785.37 = 2,680.05 : x
  2. Step 2: Convert to fraction form
    8,523.21/12,785.37 = 2,680.05/x
  3. Step 3: Cross multiply
    8,523.21x = 12,785.37 × 2,680.05
  4. Step 4: Simplify right side
    8,523.21x = 34,265,430.87
  5. Step 5: Solve for x
    x = 34,265,430.87/8,523.21
  6. Step 6: Final answer
    x = 4,020.25

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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.