Home / 6,912.50-10,368.68-3,212.66

Finding the Fourth Proportional to 6,912.50, 10,368.68 and 3,212.66

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Solution

The fourth proportional to 6,912.50, 10,368.68 and 3,212.66 is: 4,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.50 : 10,368.68 = 3,212.66 : x
  2. Step 2: Convert to fraction form
    6,912.50/10,368.68 = 3,212.66/x
  3. Step 3: Cross multiply
    6,912.50x = 10,368.68 × 3,212.66
  4. Step 4: Simplify right side
    6,912.50x = 33,311,043.49
  5. Step 5: Solve for x
    x = 33,311,043.49/6,912.50
  6. Step 6: Final answer
    x = 4,818.96

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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.