Home / 10,999.63-16,500.93-3,208.39

Finding the Fourth Proportional to 10,999.63, 16,500.93 and 3,208.39

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Solution

The fourth proportional to 10,999.63, 16,500.93 and 3,208.39 is: 4,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.63 : 16,500.93 = 3,208.39 : x
  2. Step 2: Convert to fraction form
    10,999.63/16,500.93 = 3,208.39/x
  3. Step 3: Cross multiply
    10,999.63x = 16,500.93 × 3,208.39
  4. Step 4: Simplify right side
    10,999.63x = 52,941,418.80
  5. Step 5: Solve for x
    x = 52,941,418.80/10,999.63
  6. Step 6: Final answer
    x = 4,813.02

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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.