Home / 12,408.06-18,611.97-5,012.40

Finding the Fourth Proportional to 12,408.06, 18,611.97 and 5,012.40

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Solution

The fourth proportional to 12,408.06, 18,611.97 and 5,012.40 is: 7,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.06 : 18,611.97 = 5,012.40 : x
  2. Step 2: Convert to fraction form
    12,408.06/18,611.97 = 5,012.40/x
  3. Step 3: Cross multiply
    12,408.06x = 18,611.97 × 5,012.40
  4. Step 4: Simplify right side
    12,408.06x = 93,290,638.43
  5. Step 5: Solve for x
    x = 93,290,638.43/12,408.06
  6. Step 6: Final answer
    x = 7,518.55

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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.