Home / 12,408.36-18,608.90-12,282.62

Finding the Fourth Proportional to 12,408.36, 18,608.90 and 12,282.62

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Solution

The fourth proportional to 12,408.36, 18,608.90 and 12,282.62 is: 18,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.36 : 18,608.90 = 12,282.62 : x
  2. Step 2: Convert to fraction form
    12,408.36/18,608.90 = 12,282.62/x
  3. Step 3: Cross multiply
    12,408.36x = 18,608.90 × 12,282.62
  4. Step 4: Simplify right side
    12,408.36x = 228,566,047.32
  5. Step 5: Solve for x
    x = 228,566,047.32/12,408.36
  6. Step 6: Final answer
    x = 18,420.33

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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.