Home / 8,326.82-12,486.02-2,778.18

Finding the Fourth Proportional to 8,326.82, 12,486.02 and 2,778.18

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Solution

The fourth proportional to 8,326.82, 12,486.02 and 2,778.18 is: 4,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.82 : 12,486.02 = 2,778.18 : x
  2. Step 2: Convert to fraction form
    8,326.82/12,486.02 = 2,778.18/x
  3. Step 3: Cross multiply
    8,326.82x = 12,486.02 × 2,778.18
  4. Step 4: Simplify right side
    8,326.82x = 34,688,397.15
  5. Step 5: Solve for x
    x = 34,688,397.15/8,326.82
  6. Step 6: Final answer
    x = 4,165.87

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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.