Home / 13,081.07-19,618.83-4,313.90

Finding the Fourth Proportional to 13,081.07, 19,618.83 and 4,313.90

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Solution

The fourth proportional to 13,081.07, 19,618.83 and 4,313.90 is: 6,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.07 : 19,618.83 = 4,313.90 : x
  2. Step 2: Convert to fraction form
    13,081.07/19,618.83 = 4,313.90/x
  3. Step 3: Cross multiply
    13,081.07x = 19,618.83 × 4,313.90
  4. Step 4: Simplify right side
    13,081.07x = 84,633,670.74
  5. Step 5: Solve for x
    x = 84,633,670.74/13,081.07
  6. Step 6: Final answer
    x = 6,469.93

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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.