Home / 12,703.56-19,059.30-6,128.61

Finding the Fourth Proportional to 12,703.56, 19,059.30 and 6,128.61

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Solution

The fourth proportional to 12,703.56, 19,059.30 and 6,128.61 is: 9,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.56 : 19,059.30 = 6,128.61 : x
  2. Step 2: Convert to fraction form
    12,703.56/19,059.30 = 6,128.61/x
  3. Step 3: Cross multiply
    12,703.56x = 19,059.30 × 6,128.61
  4. Step 4: Simplify right side
    12,703.56x = 116,807,016.57
  5. Step 5: Solve for x
    x = 116,807,016.57/12,703.56
  6. Step 6: Final answer
    x = 9,194.83

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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.