Home / 7,638.52-11,456.43-3,477.55

Finding the Fourth Proportional to 7,638.52, 11,456.43 and 3,477.55

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Solution

The fourth proportional to 7,638.52, 11,456.43 and 3,477.55 is: 5,215.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.52 : 11,456.43 = 3,477.55 : x
  2. Step 2: Convert to fraction form
    7,638.52/11,456.43 = 3,477.55/x
  3. Step 3: Cross multiply
    7,638.52x = 11,456.43 × 3,477.55
  4. Step 4: Simplify right side
    7,638.52x = 39,840,308.15
  5. Step 5: Solve for x
    x = 39,840,308.15/7,638.52
  6. Step 6: Final answer
    x = 5,215.71

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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.