Home / 12,021.21-18,035.46-7,080.41

Finding the Fourth Proportional to 12,021.21, 18,035.46 and 7,080.41

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Solution

The fourth proportional to 12,021.21, 18,035.46 and 7,080.41 is: 10,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.21 : 18,035.46 = 7,080.41 : x
  2. Step 2: Convert to fraction form
    12,021.21/18,035.46 = 7,080.41/x
  3. Step 3: Cross multiply
    12,021.21x = 18,035.46 × 7,080.41
  4. Step 4: Simplify right side
    12,021.21x = 127,698,496.43
  5. Step 5: Solve for x
    x = 127,698,496.43/12,021.21
  6. Step 6: Final answer
    x = 10,622.77

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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.