Home / 8,216.43-12,325.99-4,520.40

Finding the Fourth Proportional to 8,216.43, 12,325.99 and 4,520.40

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Solution

The fourth proportional to 8,216.43, 12,325.99 and 4,520.40 is: 6,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.43 : 12,325.99 = 4,520.40 : x
  2. Step 2: Convert to fraction form
    8,216.43/12,325.99 = 4,520.40/x
  3. Step 3: Cross multiply
    8,216.43x = 12,325.99 × 4,520.40
  4. Step 4: Simplify right side
    8,216.43x = 55,718,405.20
  5. Step 5: Solve for x
    x = 55,718,405.20/8,216.43
  6. Step 6: Final answer
    x = 6,781.34

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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.