Home / 12,884.75-19,329.87-3,999.89

Finding the Fourth Proportional to 12,884.75, 19,329.87 and 3,999.89

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Solution

The fourth proportional to 12,884.75, 19,329.87 and 3,999.89 is: 6,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.75 : 19,329.87 = 3,999.89 : x
  2. Step 2: Convert to fraction form
    12,884.75/19,329.87 = 3,999.89/x
  3. Step 3: Cross multiply
    12,884.75x = 19,329.87 × 3,999.89
  4. Step 4: Simplify right side
    12,884.75x = 77,317,353.71
  5. Step 5: Solve for x
    x = 77,317,353.71/12,884.75
  6. Step 6: Final answer
    x = 6,000.69

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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.