Home / 11,289.19-16,922.63-5,355.66

Finding the Fourth Proportional to 11,289.19, 16,922.63 and 5,355.66

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Solution

The fourth proportional to 11,289.19, 16,922.63 and 5,355.66 is: 8,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.19 : 16,922.63 = 5,355.66 : x
  2. Step 2: Convert to fraction form
    11,289.19/16,922.63 = 5,355.66/x
  3. Step 3: Cross multiply
    11,289.19x = 16,922.63 × 5,355.66
  4. Step 4: Simplify right side
    11,289.19x = 90,631,852.59
  5. Step 5: Solve for x
    x = 90,631,852.59/11,289.19
  6. Step 6: Final answer
    x = 8,028.20

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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.