Home / 8,216.15-12,328.11-4,265.30

Finding the Fourth Proportional to 8,216.15, 12,328.11 and 4,265.30

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Solution

The fourth proportional to 8,216.15, 12,328.11 and 4,265.30 is: 6,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.15 : 12,328.11 = 4,265.30 : x
  2. Step 2: Convert to fraction form
    8,216.15/12,328.11 = 4,265.30/x
  3. Step 3: Cross multiply
    8,216.15x = 12,328.11 × 4,265.30
  4. Step 4: Simplify right side
    8,216.15x = 52,583,118.40
  5. Step 5: Solve for x
    x = 52,583,118.40/8,216.15
  6. Step 6: Final answer
    x = 6,399.97

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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.