Home / 11,986.71-16,541.88-6,680.96

Finding the Fourth Proportional to 11,986.71, 16,541.88 and 6,680.96

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Solution

The fourth proportional to 11,986.71, 16,541.88 and 6,680.96 is: 9,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.71 : 16,541.88 = 6,680.96 : x
  2. Step 2: Convert to fraction form
    11,986.71/16,541.88 = 6,680.96/x
  3. Step 3: Cross multiply
    11,986.71x = 16,541.88 × 6,680.96
  4. Step 4: Simplify right side
    11,986.71x = 110,515,588.90
  5. Step 5: Solve for x
    x = 110,515,588.90/11,986.71
  6. Step 6: Final answer
    x = 9,219.84

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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.