Home / 6,989.43-9,644.82-4,117.71

Finding the Fourth Proportional to 6,989.43, 9,644.82 and 4,117.71

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Solution

The fourth proportional to 6,989.43, 9,644.82 and 4,117.71 is: 5,682.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.43 : 9,644.82 = 4,117.71 : x
  2. Step 2: Convert to fraction form
    6,989.43/9,644.82 = 4,117.71/x
  3. Step 3: Cross multiply
    6,989.43x = 9,644.82 × 4,117.71
  4. Step 4: Simplify right side
    6,989.43x = 39,714,571.76
  5. Step 5: Solve for x
    x = 39,714,571.76/6,989.43
  6. Step 6: Final answer
    x = 5,682.09

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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.