Home / 10,321.83-15,477.86-3,999.67

Finding the Fourth Proportional to 10,321.83, 15,477.86 and 3,999.67

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Solution

The fourth proportional to 10,321.83, 15,477.86 and 3,999.67 is: 5,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.83 : 15,477.86 = 3,999.67 : x
  2. Step 2: Convert to fraction form
    10,321.83/15,477.86 = 3,999.67/x
  3. Step 3: Cross multiply
    10,321.83x = 15,477.86 × 3,999.67
  4. Step 4: Simplify right side
    10,321.83x = 61,906,273.61
  5. Step 5: Solve for x
    x = 61,906,273.61/10,321.83
  6. Step 6: Final answer
    x = 5,997.61

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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.