Home / 7,827.18-11,744.62-3,147

Finding the Fourth Proportional to 7,827.18, 11,744.62 and 3,147

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Solution

The fourth proportional to 7,827.18, 11,744.62 and 3,147 is: 4,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.18 : 11,744.62 = 3,147 : x
  2. Step 2: Convert to fraction form
    7,827.18/11,744.62 = 3,147/x
  3. Step 3: Cross multiply
    7,827.18x = 11,744.62 × 3,147
  4. Step 4: Simplify right side
    7,827.18x = 36,960,319.14
  5. Step 5: Solve for x
    x = 36,960,319.14/7,827.18
  6. Step 6: Final answer
    x = 4,722.05

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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.