Home / 11,689.37-16,131.75-6,384.41

Finding the Fourth Proportional to 11,689.37, 16,131.75 and 6,384.41

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Solution

The fourth proportional to 11,689.37, 16,131.75 and 6,384.41 is: 8,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.37 : 16,131.75 = 6,384.41 : x
  2. Step 2: Convert to fraction form
    11,689.37/16,131.75 = 6,384.41/x
  3. Step 3: Cross multiply
    11,689.37x = 16,131.75 × 6,384.41
  4. Step 4: Simplify right side
    11,689.37x = 102,991,706.02
  5. Step 5: Solve for x
    x = 102,991,706.02/11,689.37
  6. Step 6: Final answer
    x = 8,810.71

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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.