Home / 12,857.27-19,266.05-8,680.91

Finding the Fourth Proportional to 12,857.27, 19,266.05 and 8,680.91

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Solution

The fourth proportional to 12,857.27, 19,266.05 and 8,680.91 is: 13,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.27 : 19,266.05 = 8,680.91 : x
  2. Step 2: Convert to fraction form
    12,857.27/19,266.05 = 8,680.91/x
  3. Step 3: Cross multiply
    12,857.27x = 19,266.05 × 8,680.91
  4. Step 4: Simplify right side
    12,857.27x = 167,246,771.48
  5. Step 5: Solve for x
    x = 167,246,771.48/12,857.27
  6. Step 6: Final answer
    x = 13,007.96

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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.