Home / 11,224.80-16,845.30-6,289.20

Finding the Fourth Proportional to 11,224.80, 16,845.30 and 6,289.20

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Solution

The fourth proportional to 11,224.80, 16,845.30 and 6,289.20 is: 9,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.80 : 16,845.30 = 6,289.20 : x
  2. Step 2: Convert to fraction form
    11,224.80/16,845.30 = 6,289.20/x
  3. Step 3: Cross multiply
    11,224.80x = 16,845.30 × 6,289.20
  4. Step 4: Simplify right side
    11,224.80x = 105,943,460.76
  5. Step 5: Solve for x
    x = 105,943,460.76/11,224.80
  6. Step 6: Final answer
    x = 9,438.34

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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.