Home / 13,994.69-20,984.72-5,222.39

Finding the Fourth Proportional to 13,994.69, 20,984.72 and 5,222.39

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Solution

The fourth proportional to 13,994.69, 20,984.72 and 5,222.39 is: 7,830.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.69 : 20,984.72 = 5,222.39 : x
  2. Step 2: Convert to fraction form
    13,994.69/20,984.72 = 5,222.39/x
  3. Step 3: Cross multiply
    13,994.69x = 20,984.72 × 5,222.39
  4. Step 4: Simplify right side
    13,994.69x = 109,590,260.85
  5. Step 5: Solve for x
    x = 109,590,260.85/13,994.69
  6. Step 6: Final answer
    x = 7,830.85

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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.