Home / 12,713.28-19,072.48-8,084.80

Finding the Fourth Proportional to 12,713.28, 19,072.48 and 8,084.80

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Solution

The fourth proportional to 12,713.28, 19,072.48 and 8,084.80 is: 12,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.28 : 19,072.48 = 8,084.80 : x
  2. Step 2: Convert to fraction form
    12,713.28/19,072.48 = 8,084.80/x
  3. Step 3: Cross multiply
    12,713.28x = 19,072.48 × 8,084.80
  4. Step 4: Simplify right side
    12,713.28x = 154,197,186.30
  5. Step 5: Solve for x
    x = 154,197,186.30/12,713.28
  6. Step 6: Final answer
    x = 12,128.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.