Home / 11,733.88-16,192.78-6,428.74

Finding the Fourth Proportional to 11,733.88, 16,192.78 and 6,428.74

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Solution

The fourth proportional to 11,733.88, 16,192.78 and 6,428.74 is: 8,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,733.88 : 16,192.78 = 6,428.74 : x
  2. Step 2: Convert to fraction form
    11,733.88/16,192.78 = 6,428.74/x
  3. Step 3: Cross multiply
    11,733.88x = 16,192.78 × 6,428.74
  4. Step 4: Simplify right side
    11,733.88x = 104,099,172.50
  5. Step 5: Solve for x
    x = 104,099,172.50/11,733.88
  6. Step 6: Final answer
    x = 8,871.68

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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.