Home / 11,131.11-16,703.15-4,206.15

Finding the Fourth Proportional to 11,131.11, 16,703.15 and 4,206.15

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Solution

The fourth proportional to 11,131.11, 16,703.15 and 4,206.15 is: 6,311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.11 : 16,703.15 = 4,206.15 : x
  2. Step 2: Convert to fraction form
    11,131.11/16,703.15 = 4,206.15/x
  3. Step 3: Cross multiply
    11,131.11x = 16,703.15 × 4,206.15
  4. Step 4: Simplify right side
    11,131.11x = 70,255,933.34
  5. Step 5: Solve for x
    x = 70,255,933.34/11,131.11
  6. Step 6: Final answer
    x = 6,311.67

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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.