Home / 11,989.40-16,545.44-6,956.61

Finding the Fourth Proportional to 11,989.40, 16,545.44 and 6,956.61

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Solution

The fourth proportional to 11,989.40, 16,545.44 and 6,956.61 is: 9,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.40 : 16,545.44 = 6,956.61 : x
  2. Step 2: Convert to fraction form
    11,989.40/16,545.44 = 6,956.61/x
  3. Step 3: Cross multiply
    11,989.40x = 16,545.44 × 6,956.61
  4. Step 4: Simplify right side
    11,989.40x = 115,100,173.36
  5. Step 5: Solve for x
    x = 115,100,173.36/11,989.40
  6. Step 6: Final answer
    x = 9,600.16

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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.