Home / 11,718.72-16,171.38-6,683.22

Finding the Fourth Proportional to 11,718.72, 16,171.38 and 6,683.22

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Solution

The fourth proportional to 11,718.72, 16,171.38 and 6,683.22 is: 9,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.72 : 16,171.38 = 6,683.22 : x
  2. Step 2: Convert to fraction form
    11,718.72/16,171.38 = 6,683.22/x
  3. Step 3: Cross multiply
    11,718.72x = 16,171.38 × 6,683.22
  4. Step 4: Simplify right side
    11,718.72x = 108,076,890.24
  5. Step 5: Solve for x
    x = 108,076,890.24/11,718.72
  6. Step 6: Final answer
    x = 9,222.58

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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.