Home / 12,912.30-19,346.58-11,950.02

Finding the Fourth Proportional to 12,912.30, 19,346.58 and 11,950.02

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Solution

The fourth proportional to 12,912.30, 19,346.58 and 11,950.02 is: 17,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.30 : 19,346.58 = 11,950.02 : x
  2. Step 2: Convert to fraction form
    12,912.30/19,346.58 = 11,950.02/x
  3. Step 3: Cross multiply
    12,912.30x = 19,346.58 × 11,950.02
  4. Step 4: Simplify right side
    12,912.30x = 231,192,017.93
  5. Step 5: Solve for x
    x = 231,192,017.93/12,912.30
  6. Step 6: Final answer
    x = 17,904.79

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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.