Home / 10,999.01-15,175.12-6,745.70

Finding the Fourth Proportional to 10,999.01, 15,175.12 and 6,745.70

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Solution

The fourth proportional to 10,999.01, 15,175.12 and 6,745.70 is: 9,306.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.01 : 15,175.12 = 6,745.70 : x
  2. Step 2: Convert to fraction form
    10,999.01/15,175.12 = 6,745.70/x
  3. Step 3: Cross multiply
    10,999.01x = 15,175.12 × 6,745.70
  4. Step 4: Simplify right side
    10,999.01x = 102,366,806.98
  5. Step 5: Solve for x
    x = 102,366,806.98/10,999.01
  6. Step 6: Final answer
    x = 9,306.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.