Home / 11,603.75-16,003.46-9,999.95

Finding the Fourth Proportional to 11,603.75, 16,003.46 and 9,999.95

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Solution

The fourth proportional to 11,603.75, 16,003.46 and 9,999.95 is: 13,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.75 : 16,003.46 = 9,999.95 : x
  2. Step 2: Convert to fraction form
    11,603.75/16,003.46 = 9,999.95/x
  3. Step 3: Cross multiply
    11,603.75x = 16,003.46 × 9,999.95
  4. Step 4: Simplify right side
    11,603.75x = 160,033,749.83
  5. Step 5: Solve for x
    x = 160,033,749.83/11,603.75
  6. Step 6: Final answer
    x = 13,791.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.