Home / 11,660.35-17,490.53-6,411.55

Finding the Fourth Proportional to 11,660.35, 17,490.53 and 6,411.55

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Solution

The fourth proportional to 11,660.35, 17,490.53 and 6,411.55 is: 9,617.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.35 : 17,490.53 = 6,411.55 : x
  2. Step 2: Convert to fraction form
    11,660.35/17,490.53 = 6,411.55/x
  3. Step 3: Cross multiply
    11,660.35x = 17,490.53 × 6,411.55
  4. Step 4: Simplify right side
    11,660.35x = 112,141,375.56
  5. Step 5: Solve for x
    x = 112,141,375.56/11,660.35
  6. Step 6: Final answer
    x = 9,617.33

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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.