Home / 12,470.83-18,707.25-3,705.75

Finding the Fourth Proportional to 12,470.83, 18,707.25 and 3,705.75

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Solution

The fourth proportional to 12,470.83, 18,707.25 and 3,705.75 is: 5,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.83 : 18,707.25 = 3,705.75 : x
  2. Step 2: Convert to fraction form
    12,470.83/18,707.25 = 3,705.75/x
  3. Step 3: Cross multiply
    12,470.83x = 18,707.25 × 3,705.75
  4. Step 4: Simplify right side
    12,470.83x = 69,324,405.58
  5. Step 5: Solve for x
    x = 69,324,405.58/12,470.83
  6. Step 6: Final answer
    x = 5,558.93

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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.