Home / 7,828.65-11,740.04-3,147.07

Finding the Fourth Proportional to 7,828.65, 11,740.04 and 3,147.07

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Solution

The fourth proportional to 7,828.65, 11,740.04 and 3,147.07 is: 4,719.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.65 : 11,740.04 = 3,147.07 : x
  2. Step 2: Convert to fraction form
    7,828.65/11,740.04 = 3,147.07/x
  3. Step 3: Cross multiply
    7,828.65x = 11,740.04 × 3,147.07
  4. Step 4: Simplify right side
    7,828.65x = 36,946,727.68
  5. Step 5: Solve for x
    x = 36,946,727.68/7,828.65
  6. Step 6: Final answer
    x = 4,719.43

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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.