Home / 7,914.20-10,921.89-4,377.33

Finding the Fourth Proportional to 7,914.20, 10,921.89 and 4,377.33

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Solution

The fourth proportional to 7,914.20, 10,921.89 and 4,377.33 is: 6,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.20 : 10,921.89 = 4,377.33 : x
  2. Step 2: Convert to fraction form
    7,914.20/10,921.89 = 4,377.33/x
  3. Step 3: Cross multiply
    7,914.20x = 10,921.89 × 4,377.33
  4. Step 4: Simplify right side
    7,914.20x = 47,808,716.75
  5. Step 5: Solve for x
    x = 47,808,716.75/7,914.20
  6. Step 6: Final answer
    x = 6,040.88

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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.