Home / 8,117.66-12,166.70-3,951.43

Finding the Fourth Proportional to 8,117.66, 12,166.70 and 3,951.43

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Solution

The fourth proportional to 8,117.66, 12,166.70 and 3,951.43 is: 5,922.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.66 : 12,166.70 = 3,951.43 : x
  2. Step 2: Convert to fraction form
    8,117.66/12,166.70 = 3,951.43/x
  3. Step 3: Cross multiply
    8,117.66x = 12,166.70 × 3,951.43
  4. Step 4: Simplify right side
    8,117.66x = 48,075,842.84
  5. Step 5: Solve for x
    x = 48,075,842.84/8,117.66
  6. Step 6: Final answer
    x = 5,922.38

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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.