Home / 11,128.95-16,699.05-4,887.27

Finding the Fourth Proportional to 11,128.95, 16,699.05 and 4,887.27

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Solution

The fourth proportional to 11,128.95, 16,699.05 and 4,887.27 is: 7,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.95 : 16,699.05 = 4,887.27 : x
  2. Step 2: Convert to fraction form
    11,128.95/16,699.05 = 4,887.27/x
  3. Step 3: Cross multiply
    11,128.95x = 16,699.05 × 4,887.27
  4. Step 4: Simplify right side
    11,128.95x = 81,612,766.09
  5. Step 5: Solve for x
    x = 81,612,766.09/11,128.95
  6. Step 6: Final answer
    x = 7,333.38

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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.