Home / 12,708.89-19,059.29-11,879.67

Finding the Fourth Proportional to 12,708.89, 19,059.29 and 11,879.67

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Solution

The fourth proportional to 12,708.89, 19,059.29 and 11,879.67 is: 17,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.89 : 19,059.29 = 11,879.67 : x
  2. Step 2: Convert to fraction form
    12,708.89/19,059.29 = 11,879.67/x
  3. Step 3: Cross multiply
    12,708.89x = 19,059.29 × 11,879.67
  4. Step 4: Simplify right side
    12,708.89x = 226,418,016.24
  5. Step 5: Solve for x
    x = 226,418,016.24/12,708.89
  6. Step 6: Final answer
    x = 17,815.73

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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.