Home / 7,628.16-11,432.82-4,505

Finding the Fourth Proportional to 7,628.16, 11,432.82 and 4,505

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Solution

The fourth proportional to 7,628.16, 11,432.82 and 4,505 is: 6,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.16 : 11,432.82 = 4,505 : x
  2. Step 2: Convert to fraction form
    7,628.16/11,432.82 = 4,505/x
  3. Step 3: Cross multiply
    7,628.16x = 11,432.82 × 4,505
  4. Step 4: Simplify right side
    7,628.16x = 51,504,854.10
  5. Step 5: Solve for x
    x = 51,504,854.10/7,628.16
  6. Step 6: Final answer
    x = 6,751.94

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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.