Home / 8,343.87-11,513.40-4,985.97

Finding the Fourth Proportional to 8,343.87, 11,513.40 and 4,985.97

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Solution

The fourth proportional to 8,343.87, 11,513.40 and 4,985.97 is: 6,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.87 : 11,513.40 = 4,985.97 : x
  2. Step 2: Convert to fraction form
    8,343.87/11,513.40 = 4,985.97/x
  3. Step 3: Cross multiply
    8,343.87x = 11,513.40 × 4,985.97
  4. Step 4: Simplify right side
    8,343.87x = 57,405,467.00
  5. Step 5: Solve for x
    x = 57,405,467.00/8,343.87
  6. Step 6: Final answer
    x = 6,879.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.