Home / 11,715.46-16,167.74-6,680.44

Finding the Fourth Proportional to 11,715.46, 16,167.74 and 6,680.44

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Solution

The fourth proportional to 11,715.46, 16,167.74 and 6,680.44 is: 9,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.46 : 16,167.74 = 6,680.44 : x
  2. Step 2: Convert to fraction form
    11,715.46/16,167.74 = 6,680.44/x
  3. Step 3: Cross multiply
    11,715.46x = 16,167.74 × 6,680.44
  4. Step 4: Simplify right side
    11,715.46x = 108,007,617.01
  5. Step 5: Solve for x
    x = 108,007,617.01/11,715.46
  6. Step 6: Final answer
    x = 9,219.24

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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.