Home / 7,308.20-10,947.90-4,377.80

Finding the Fourth Proportional to 7,308.20, 10,947.90 and 4,377.80

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Solution

The fourth proportional to 7,308.20, 10,947.90 and 4,377.80 is: 6,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.20 : 10,947.90 = 4,377.80 : x
  2. Step 2: Convert to fraction form
    7,308.20/10,947.90 = 4,377.80/x
  3. Step 3: Cross multiply
    7,308.20x = 10,947.90 × 4,377.80
  4. Step 4: Simplify right side
    7,308.20x = 47,927,716.62
  5. Step 5: Solve for x
    x = 47,927,716.62/7,308.20
  6. Step 6: Final answer
    x = 6,558.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.