Home / 13,187.86-19,783.74-3,826.67

Finding the Fourth Proportional to 13,187.86, 19,783.74 and 3,826.67

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Solution

The fourth proportional to 13,187.86, 19,783.74 and 3,826.67 is: 5,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.86 : 19,783.74 = 3,826.67 : x
  2. Step 2: Convert to fraction form
    13,187.86/19,783.74 = 3,826.67/x
  3. Step 3: Cross multiply
    13,187.86x = 19,783.74 × 3,826.67
  4. Step 4: Simplify right side
    13,187.86x = 75,705,753.08
  5. Step 5: Solve for x
    x = 75,705,753.08/13,187.86
  6. Step 6: Final answer
    x = 5,740.56

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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.