Home / 7,828.09-11,750.33-4,129.32

Finding the Fourth Proportional to 7,828.09, 11,750.33 and 4,129.32

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Solution

The fourth proportional to 7,828.09, 11,750.33 and 4,129.32 is: 6,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.09 : 11,750.33 = 4,129.32 : x
  2. Step 2: Convert to fraction form
    7,828.09/11,750.33 = 4,129.32/x
  3. Step 3: Cross multiply
    7,828.09x = 11,750.33 × 4,129.32
  4. Step 4: Simplify right side
    7,828.09x = 48,520,927.06
  5. Step 5: Solve for x
    x = 48,520,927.06/7,828.09
  6. Step 6: Final answer
    x = 6,198.31

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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.