Home / 12,857.74-19,273.42-6,275.82

Finding the Fourth Proportional to 12,857.74, 19,273.42 and 6,275.82

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Solution

The fourth proportional to 12,857.74, 19,273.42 and 6,275.82 is: 9,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.74 : 19,273.42 = 6,275.82 : x
  2. Step 2: Convert to fraction form
    12,857.74/19,273.42 = 6,275.82/x
  3. Step 3: Cross multiply
    12,857.74x = 19,273.42 × 6,275.82
  4. Step 4: Simplify right side
    12,857.74x = 120,956,514.70
  5. Step 5: Solve for x
    x = 120,956,514.70/12,857.74
  6. Step 6: Final answer
    x = 9,407.29

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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.