Home / 11,994.52-17,986.50-5,420.44

Finding the Fourth Proportional to 11,994.52, 17,986.50 and 5,420.44

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Solution

The fourth proportional to 11,994.52, 17,986.50 and 5,420.44 is: 8,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.52 : 17,986.50 = 5,420.44 : x
  2. Step 2: Convert to fraction form
    11,994.52/17,986.50 = 5,420.44/x
  3. Step 3: Cross multiply
    11,994.52x = 17,986.50 × 5,420.44
  4. Step 4: Simplify right side
    11,994.52x = 97,494,744.06
  5. Step 5: Solve for x
    x = 97,494,744.06/11,994.52
  6. Step 6: Final answer
    x = 8,128.27

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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.