Home / 11,711.90-16,161.72-6,675.41

Finding the Fourth Proportional to 11,711.90, 16,161.72 and 6,675.41

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Solution

The fourth proportional to 11,711.90, 16,161.72 and 6,675.41 is: 9,211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.90 : 16,161.72 = 6,675.41 : x
  2. Step 2: Convert to fraction form
    11,711.90/16,161.72 = 6,675.41/x
  3. Step 3: Cross multiply
    11,711.90x = 16,161.72 × 6,675.41
  4. Step 4: Simplify right side
    11,711.90x = 107,886,107.31
  5. Step 5: Solve for x
    x = 107,886,107.31/11,711.90
  6. Step 6: Final answer
    x = 9,211.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.