Home / 6,990.23-9,644.43-4,156.16

Finding the Fourth Proportional to 6,990.23, 9,644.43 and 4,156.16

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Solution

The fourth proportional to 6,990.23, 9,644.43 and 4,156.16 is: 5,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.23 : 9,644.43 = 4,156.16 : x
  2. Step 2: Convert to fraction form
    6,990.23/9,644.43 = 4,156.16/x
  3. Step 3: Cross multiply
    6,990.23x = 9,644.43 × 4,156.16
  4. Step 4: Simplify right side
    6,990.23x = 40,083,745.97
  5. Step 5: Solve for x
    x = 40,083,745.97/6,990.23
  6. Step 6: Final answer
    x = 5,734.26

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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.