Home / 8,381.18-12,577.82-3,116.93

Finding the Fourth Proportional to 8,381.18, 12,577.82 and 3,116.93

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Solution

The fourth proportional to 8,381.18, 12,577.82 and 3,116.93 is: 4,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.18 : 12,577.82 = 3,116.93 : x
  2. Step 2: Convert to fraction form
    8,381.18/12,577.82 = 3,116.93/x
  3. Step 3: Cross multiply
    8,381.18x = 12,577.82 × 3,116.93
  4. Step 4: Simplify right side
    8,381.18x = 39,204,106.02
  5. Step 5: Solve for x
    x = 39,204,106.02/8,381.18
  6. Step 6: Final answer
    x = 4,677.63

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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.