Home / 7,851.98-11,794.37-6,621.81

Finding the Fourth Proportional to 7,851.98, 11,794.37 and 6,621.81

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Solution

The fourth proportional to 7,851.98, 11,794.37 and 6,621.81 is: 9,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.98 : 11,794.37 = 6,621.81 : x
  2. Step 2: Convert to fraction form
    7,851.98/11,794.37 = 6,621.81/x
  3. Step 3: Cross multiply
    7,851.98x = 11,794.37 × 6,621.81
  4. Step 4: Simplify right side
    7,851.98x = 78,100,044.10
  5. Step 5: Solve for x
    x = 78,100,044.10/7,851.98
  6. Step 6: Final answer
    x = 9,946.55

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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.