Home / 7,614.16-11,415.54-3,228.80

Finding the Fourth Proportional to 7,614.16, 11,415.54 and 3,228.80

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Solution

The fourth proportional to 7,614.16, 11,415.54 and 3,228.80 is: 4,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.16 : 11,415.54 = 3,228.80 : x
  2. Step 2: Convert to fraction form
    7,614.16/11,415.54 = 3,228.80/x
  3. Step 3: Cross multiply
    7,614.16x = 11,415.54 × 3,228.80
  4. Step 4: Simplify right side
    7,614.16x = 36,858,495.55
  5. Step 5: Solve for x
    x = 36,858,495.55/7,614.16
  6. Step 6: Final answer
    x = 4,840.78

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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.