Home / 12,728.15-19,093.52-4,408.15

Finding the Fourth Proportional to 12,728.15, 19,093.52 and 4,408.15

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Solution

The fourth proportional to 12,728.15, 19,093.52 and 4,408.15 is: 6,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.15 : 19,093.52 = 4,408.15 : x
  2. Step 2: Convert to fraction form
    12,728.15/19,093.52 = 4,408.15/x
  3. Step 3: Cross multiply
    12,728.15x = 19,093.52 × 4,408.15
  4. Step 4: Simplify right side
    12,728.15x = 84,167,100.19
  5. Step 5: Solve for x
    x = 84,167,100.19/12,728.15
  6. Step 6: Final answer
    x = 6,612.67

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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.