Home / 8,821.15-12,163.67-6,302.31

Finding the Fourth Proportional to 8,821.15, 12,163.67 and 6,302.31

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Solution

The fourth proportional to 8,821.15, 12,163.67 and 6,302.31 is: 8,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.15 : 12,163.67 = 6,302.31 : x
  2. Step 2: Convert to fraction form
    8,821.15/12,163.67 = 6,302.31/x
  3. Step 3: Cross multiply
    8,821.15x = 12,163.67 × 6,302.31
  4. Step 4: Simplify right side
    8,821.15x = 76,659,165.59
  5. Step 5: Solve for x
    x = 76,659,165.59/8,821.15
  6. Step 6: Final answer
    x = 8,690.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.