Home / 8,111.35-12,176.15-6,284.50

Finding the Fourth Proportional to 8,111.35, 12,176.15 and 6,284.50

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Solution

The fourth proportional to 8,111.35, 12,176.15 and 6,284.50 is: 9,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.35 : 12,176.15 = 6,284.50 : x
  2. Step 2: Convert to fraction form
    8,111.35/12,176.15 = 6,284.50/x
  3. Step 3: Cross multiply
    8,111.35x = 12,176.15 × 6,284.50
  4. Step 4: Simplify right side
    8,111.35x = 76,520,952.81
  5. Step 5: Solve for x
    x = 76,520,952.81/8,111.35
  6. Step 6: Final answer
    x = 9,433.81

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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.