Home / 12,789.99-19,186.80-4,021.94

Finding the Fourth Proportional to 12,789.99, 19,186.80 and 4,021.94

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Solution

The fourth proportional to 12,789.99, 19,186.80 and 4,021.94 is: 6,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.99 : 19,186.80 = 4,021.94 : x
  2. Step 2: Convert to fraction form
    12,789.99/19,186.80 = 4,021.94/x
  3. Step 3: Cross multiply
    12,789.99x = 19,186.80 × 4,021.94
  4. Step 4: Simplify right side
    12,789.99x = 77,168,062.46
  5. Step 5: Solve for x
    x = 77,168,062.46/12,789.99
  6. Step 6: Final answer
    x = 6,033.47

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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.