Home / 11,478.06-17,183.67-8,529.57

Finding the Fourth Proportional to 11,478.06, 17,183.67 and 8,529.57

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Solution

The fourth proportional to 11,478.06, 17,183.67 and 8,529.57 is: 12,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.06 : 17,183.67 = 8,529.57 : x
  2. Step 2: Convert to fraction form
    11,478.06/17,183.67 = 8,529.57/x
  3. Step 3: Cross multiply
    11,478.06x = 17,183.67 × 8,529.57
  4. Step 4: Simplify right side
    11,478.06x = 146,569,316.12
  5. Step 5: Solve for x
    x = 146,569,316.12/11,478.06
  6. Step 6: Final answer
    x = 12,769.52

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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.