Home / 19,539.75-29,317.83-8,440.73

Finding the Fourth Proportional to 19,539.75, 29,317.83 and 8,440.73

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Solution

The fourth proportional to 19,539.75, 29,317.83 and 8,440.73 is: 12,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.75 : 29,317.83 = 8,440.73 : x
  2. Step 2: Convert to fraction form
    19,539.75/29,317.83 = 8,440.73/x
  3. Step 3: Cross multiply
    19,539.75x = 29,317.83 × 8,440.73
  4. Step 4: Simplify right side
    19,539.75x = 247,463,887.22
  5. Step 5: Solve for x
    x = 247,463,887.22/19,539.75
  6. Step 6: Final answer
    x = 12,664.64

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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.