Home / 10,990.12-16,485.60-3,199

Finding the Fourth Proportional to 10,990.12, 16,485.60 and 3,199

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Solution

The fourth proportional to 10,990.12, 16,485.60 and 3,199 is: 4,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.12 : 16,485.60 = 3,199 : x
  2. Step 2: Convert to fraction form
    10,990.12/16,485.60 = 3,199/x
  3. Step 3: Cross multiply
    10,990.12x = 16,485.60 × 3,199
  4. Step 4: Simplify right side
    10,990.12x = 52,737,434.40
  5. Step 5: Solve for x
    x = 52,737,434.40/10,990.12
  6. Step 6: Final answer
    x = 4,798.62

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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.