Home / 7,912.66-10,919.54-4,376.11

Finding the Fourth Proportional to 7,912.66, 10,919.54 and 4,376.11

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Solution

The fourth proportional to 7,912.66, 10,919.54 and 4,376.11 is: 6,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.66 : 10,919.54 = 4,376.11 : x
  2. Step 2: Convert to fraction form
    7,912.66/10,919.54 = 4,376.11/x
  3. Step 3: Cross multiply
    7,912.66x = 10,919.54 × 4,376.11
  4. Step 4: Simplify right side
    7,912.66x = 47,785,031.71
  5. Step 5: Solve for x
    x = 47,785,031.71/7,912.66
  6. Step 6: Final answer
    x = 6,039.06

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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.