Home / 7,828.25-11,733.56-3,147.15

Finding the Fourth Proportional to 7,828.25, 11,733.56 and 3,147.15

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Solution

The fourth proportional to 7,828.25, 11,733.56 and 3,147.15 is: 4,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.25 : 11,733.56 = 3,147.15 : x
  2. Step 2: Convert to fraction form
    7,828.25/11,733.56 = 3,147.15/x
  3. Step 3: Cross multiply
    7,828.25x = 11,733.56 × 3,147.15
  4. Step 4: Simplify right side
    7,828.25x = 36,927,313.42
  5. Step 5: Solve for x
    x = 36,927,313.42/7,828.25
  6. Step 6: Final answer
    x = 4,717.19

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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.