Home / 7,912.28-10,921.11-4,926.37

Finding the Fourth Proportional to 7,912.28, 10,921.11 and 4,926.37

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Solution

The fourth proportional to 7,912.28, 10,921.11 and 4,926.37 is: 6,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.28 : 10,921.11 = 4,926.37 : x
  2. Step 2: Convert to fraction form
    7,912.28/10,921.11 = 4,926.37/x
  3. Step 3: Cross multiply
    7,912.28x = 10,921.11 × 4,926.37
  4. Step 4: Simplify right side
    7,912.28x = 53,801,374.07
  5. Step 5: Solve for x
    x = 53,801,374.07/7,912.28
  6. Step 6: Final answer
    x = 6,799.73

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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.