Home / 11,686.37-16,127.61-6,381.41

Finding the Fourth Proportional to 11,686.37, 16,127.61 and 6,381.41

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Solution

The fourth proportional to 11,686.37, 16,127.61 and 6,381.41 is: 8,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.37 : 16,127.61 = 6,381.41 : x
  2. Step 2: Convert to fraction form
    11,686.37/16,127.61 = 6,381.41/x
  3. Step 3: Cross multiply
    11,686.37x = 16,127.61 × 6,381.41
  4. Step 4: Simplify right side
    11,686.37x = 102,916,891.73
  5. Step 5: Solve for x
    x = 102,916,891.73/11,686.37
  6. Step 6: Final answer
    x = 8,806.57

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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.