Home / 10,985.22-16,481.43-4,409.64

Finding the Fourth Proportional to 10,985.22, 16,481.43 and 4,409.64

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Solution

The fourth proportional to 10,985.22, 16,481.43 and 4,409.64 is: 6,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.22 : 16,481.43 = 4,409.64 : x
  2. Step 2: Convert to fraction form
    10,985.22/16,481.43 = 4,409.64/x
  3. Step 3: Cross multiply
    10,985.22x = 16,481.43 × 4,409.64
  4. Step 4: Simplify right side
    10,985.22x = 72,677,172.99
  5. Step 5: Solve for x
    x = 72,677,172.99/10,985.22
  6. Step 6: Final answer
    x = 6,615.91

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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.