Home / 7,912.89-10,919.97-4,376.16

Finding the Fourth Proportional to 7,912.89, 10,919.97 and 4,376.16

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Solution

The fourth proportional to 7,912.89, 10,919.97 and 4,376.16 is: 6,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.89 : 10,919.97 = 4,376.16 : x
  2. Step 2: Convert to fraction form
    7,912.89/10,919.97 = 4,376.16/x
  3. Step 3: Cross multiply
    7,912.89x = 10,919.97 × 4,376.16
  4. Step 4: Simplify right side
    7,912.89x = 47,787,535.92
  5. Step 5: Solve for x
    x = 47,787,535.92/7,912.89
  6. Step 6: Final answer
    x = 6,039.20

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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.