Home / 7,845.36-11,762.32-3,895.80

Finding the Fourth Proportional to 7,845.36, 11,762.32 and 3,895.80

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Solution

The fourth proportional to 7,845.36, 11,762.32 and 3,895.80 is: 5,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.36 : 11,762.32 = 3,895.80 : x
  2. Step 2: Convert to fraction form
    7,845.36/11,762.32 = 3,895.80/x
  3. Step 3: Cross multiply
    7,845.36x = 11,762.32 × 3,895.80
  4. Step 4: Simplify right side
    7,845.36x = 45,823,646.26
  5. Step 5: Solve for x
    x = 45,823,646.26/7,845.36
  6. Step 6: Final answer
    x = 5,840.86

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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.