Home / 12,914.64-17,827.62-8,728.56

Finding the Fourth Proportional to 12,914.64, 17,827.62 and 8,728.56

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Solution

The fourth proportional to 12,914.64, 17,827.62 and 8,728.56 is: 12,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.64 : 17,827.62 = 8,728.56 : x
  2. Step 2: Convert to fraction form
    12,914.64/17,827.62 = 8,728.56/x
  3. Step 3: Cross multiply
    12,914.64x = 17,827.62 × 8,728.56
  4. Step 4: Simplify right side
    12,914.64x = 155,609,450.83
  5. Step 5: Solve for x
    x = 155,609,450.83/12,914.64
  6. Step 6: Final answer
    x = 12,049.07

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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.