Home / 11,718.12-16,172.82-6,682.35

Finding the Fourth Proportional to 11,718.12, 16,172.82 and 6,682.35

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Solution

The fourth proportional to 11,718.12, 16,172.82 and 6,682.35 is: 9,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.12 : 16,172.82 = 6,682.35 : x
  2. Step 2: Convert to fraction form
    11,718.12/16,172.82 = 6,682.35/x
  3. Step 3: Cross multiply
    11,718.12x = 16,172.82 × 6,682.35
  4. Step 4: Simplify right side
    11,718.12x = 108,072,443.73
  5. Step 5: Solve for x
    x = 108,072,443.73/11,718.12
  6. Step 6: Final answer
    x = 9,222.68

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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.