Home / 7,675.45-11,511.51-2,745.43

Finding the Fourth Proportional to 7,675.45, 11,511.51 and 2,745.43

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Solution

The fourth proportional to 7,675.45, 11,511.51 and 2,745.43 is: 4,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.45 : 11,511.51 = 2,745.43 : x
  2. Step 2: Convert to fraction form
    7,675.45/11,511.51 = 2,745.43/x
  3. Step 3: Cross multiply
    7,675.45x = 11,511.51 × 2,745.43
  4. Step 4: Simplify right side
    7,675.45x = 31,604,044.90
  5. Step 5: Solve for x
    x = 31,604,044.90/7,675.45
  6. Step 6: Final answer
    x = 4,117.55

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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.