Home / 7,628.31-11,446.79-4,118.27

Finding the Fourth Proportional to 7,628.31, 11,446.79 and 4,118.27

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Solution

The fourth proportional to 7,628.31, 11,446.79 and 4,118.27 is: 6,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.31 : 11,446.79 = 4,118.27 : x
  2. Step 2: Convert to fraction form
    7,628.31/11,446.79 = 4,118.27/x
  3. Step 3: Cross multiply
    7,628.31x = 11,446.79 × 4,118.27
  4. Step 4: Simplify right side
    7,628.31x = 47,140,971.85
  5. Step 5: Solve for x
    x = 47,140,971.85/7,628.31
  6. Step 6: Final answer
    x = 6,179.74

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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.