Home / 11,811.81-16,297.02-8,222.73

Finding the Fourth Proportional to 11,811.81, 16,297.02 and 8,222.73

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Solution

The fourth proportional to 11,811.81, 16,297.02 and 8,222.73 is: 11,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.81 : 16,297.02 = 8,222.73 : x
  2. Step 2: Convert to fraction form
    11,811.81/16,297.02 = 8,222.73/x
  3. Step 3: Cross multiply
    11,811.81x = 16,297.02 × 8,222.73
  4. Step 4: Simplify right side
    11,811.81x = 134,005,872.67
  5. Step 5: Solve for x
    x = 134,005,872.67/11,811.81
  6. Step 6: Final answer
    x = 11,345.08

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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.