Home / 10,321.89-15,477.95-3,999.73

Finding the Fourth Proportional to 10,321.89, 15,477.95 and 3,999.73

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Solution

The fourth proportional to 10,321.89, 15,477.95 and 3,999.73 is: 5,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.89 : 15,477.95 = 3,999.73 : x
  2. Step 2: Convert to fraction form
    10,321.89/15,477.95 = 3,999.73/x
  3. Step 3: Cross multiply
    10,321.89x = 15,477.95 × 3,999.73
  4. Step 4: Simplify right side
    10,321.89x = 61,907,620.95
  5. Step 5: Solve for x
    x = 61,907,620.95/10,321.89
  6. Step 6: Final answer
    x = 5,997.70

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1.5x scale

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.