Home / 6,989.74-9,644.76-4,157.06

Finding the Fourth Proportional to 6,989.74, 9,644.76 and 4,157.06

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Solution

The fourth proportional to 6,989.74, 9,644.76 and 4,157.06 is: 5,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.74 : 9,644.76 = 4,157.06 : x
  2. Step 2: Convert to fraction form
    6,989.74/9,644.76 = 4,157.06/x
  3. Step 3: Cross multiply
    6,989.74x = 9,644.76 × 4,157.06
  4. Step 4: Simplify right side
    6,989.74x = 40,093,797.78
  5. Step 5: Solve for x
    x = 40,093,797.78/6,989.74
  6. Step 6: Final answer
    x = 5,736.09

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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.