Home / 12,787.11-19,183.11-4,019.67

Finding the Fourth Proportional to 12,787.11, 19,183.11 and 4,019.67

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Solution

The fourth proportional to 12,787.11, 19,183.11 and 4,019.67 is: 6,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.11 : 19,183.11 = 4,019.67 : x
  2. Step 2: Convert to fraction form
    12,787.11/19,183.11 = 4,019.67/x
  3. Step 3: Cross multiply
    12,787.11x = 19,183.11 × 4,019.67
  4. Step 4: Simplify right side
    12,787.11x = 77,109,771.77
  5. Step 5: Solve for x
    x = 77,109,771.77/12,787.11
  6. Step 6: Final answer
    x = 6,030.27

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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.