Home / 12,679.23-19,021.01-3,913.95

Finding the Fourth Proportional to 12,679.23, 19,021.01 and 3,913.95

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Solution

The fourth proportional to 12,679.23, 19,021.01 and 3,913.95 is: 5,871.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.23 : 19,021.01 = 3,913.95 : x
  2. Step 2: Convert to fraction form
    12,679.23/19,021.01 = 3,913.95/x
  3. Step 3: Cross multiply
    12,679.23x = 19,021.01 × 3,913.95
  4. Step 4: Simplify right side
    12,679.23x = 74,447,262.52
  5. Step 5: Solve for x
    x = 74,447,262.52/12,679.23
  6. Step 6: Final answer
    x = 5,871.59

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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.