Home / 7,845.20-11,766.84-2,913.36

Finding the Fourth Proportional to 7,845.20, 11,766.84 and 2,913.36

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Solution

The fourth proportional to 7,845.20, 11,766.84 and 2,913.36 is: 4,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.20 : 11,766.84 = 2,913.36 : x
  2. Step 2: Convert to fraction form
    7,845.20/11,766.84 = 2,913.36/x
  3. Step 3: Cross multiply
    7,845.20x = 11,766.84 × 2,913.36
  4. Step 4: Simplify right side
    7,845.20x = 34,281,040.98
  5. Step 5: Solve for x
    x = 34,281,040.98/7,845.20
  6. Step 6: Final answer
    x = 4,369.68

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1.5x scale

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.