Home / 8,523.18-12,785.34-2,680.20

Finding the Fourth Proportional to 8,523.18, 12,785.34 and 2,680.20

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Solution

The fourth proportional to 8,523.18, 12,785.34 and 2,680.20 is: 4,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.18 : 12,785.34 = 2,680.20 : x
  2. Step 2: Convert to fraction form
    8,523.18/12,785.34 = 2,680.20/x
  3. Step 3: Cross multiply
    8,523.18x = 12,785.34 × 2,680.20
  4. Step 4: Simplify right side
    8,523.18x = 34,267,268.27
  5. Step 5: Solve for x
    x = 34,267,268.27/8,523.18
  6. Step 6: Final answer
    x = 4,020.48

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1.5x scale

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.