Home / 11,328.50-16,999.62-7,162.76

Finding the Fourth Proportional to 11,328.50, 16,999.62 and 7,162.76

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Solution

The fourth proportional to 11,328.50, 16,999.62 and 7,162.76 is: 10,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.50 : 16,999.62 = 7,162.76 : x
  2. Step 2: Convert to fraction form
    11,328.50/16,999.62 = 7,162.76/x
  3. Step 3: Cross multiply
    11,328.50x = 16,999.62 × 7,162.76
  4. Step 4: Simplify right side
    11,328.50x = 121,764,198.15
  5. Step 5: Solve for x
    x = 121,764,198.15/11,328.50
  6. Step 6: Final answer
    x = 10,748.48

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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.