Home / 11,998.08-16,433.28-11,289.60

Finding the Fourth Proportional to 11,998.08, 16,433.28 and 11,289.60

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Solution

The fourth proportional to 11,998.08, 16,433.28 and 11,289.60 is: 15,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.08 : 16,433.28 = 11,289.60 : x
  2. Step 2: Convert to fraction form
    11,998.08/16,433.28 = 11,289.60/x
  3. Step 3: Cross multiply
    11,998.08x = 16,433.28 × 11,289.60
  4. Step 4: Simplify right side
    11,998.08x = 185,525,157.89
  5. Step 5: Solve for x
    x = 185,525,157.89/11,998.08
  6. Step 6: Final answer
    x = 15,462.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.