Home / 10,696.16-16,020.48-8,212.70

Finding the Fourth Proportional to 10,696.16, 16,020.48 and 8,212.70

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Solution

The fourth proportional to 10,696.16, 16,020.48 and 8,212.70 is: 12,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,696.16 : 16,020.48 = 8,212.70 : x
  2. Step 2: Convert to fraction form
    10,696.16/16,020.48 = 8,212.70/x
  3. Step 3: Cross multiply
    10,696.16x = 16,020.48 × 8,212.70
  4. Step 4: Simplify right side
    10,696.16x = 131,571,396.10
  5. Step 5: Solve for x
    x = 131,571,396.10/10,696.16
  6. Step 6: Final answer
    x = 12,300.81

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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.