Home / 7,912.06-10,913.50-5,074.94

Finding the Fourth Proportional to 7,912.06, 10,913.50 and 5,074.94

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Solution

The fourth proportional to 7,912.06, 10,913.50 and 5,074.94 is: 7,000.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.06 : 10,913.50 = 5,074.94 : x
  2. Step 2: Convert to fraction form
    7,912.06/10,913.50 = 5,074.94/x
  3. Step 3: Cross multiply
    7,912.06x = 10,913.50 × 5,074.94
  4. Step 4: Simplify right side
    7,912.06x = 55,385,414.58
  5. Step 5: Solve for x
    x = 55,385,414.58/7,912.06
  6. Step 6: Final answer
    x = 7,000.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.