Home / 7,918.63-11,873.91-2,651.74

Finding the Fourth Proportional to 7,918.63, 11,873.91 and 2,651.74

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Solution

The fourth proportional to 7,918.63, 11,873.91 and 2,651.74 is: 3,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.63 : 11,873.91 = 2,651.74 : x
  2. Step 2: Convert to fraction form
    7,918.63/11,873.91 = 2,651.74/x
  3. Step 3: Cross multiply
    7,918.63x = 11,873.91 × 2,651.74
  4. Step 4: Simplify right side
    7,918.63x = 31,486,569.15
  5. Step 5: Solve for x
    x = 31,486,569.15/7,918.63
  6. Step 6: Final answer
    x = 3,976.27

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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.