Home / 10,006.37-13,803.63-8,120.09

Finding the Fourth Proportional to 10,006.37, 13,803.63 and 8,120.09

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Solution

The fourth proportional to 10,006.37, 13,803.63 and 8,120.09 is: 11,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.37 : 13,803.63 = 8,120.09 : x
  2. Step 2: Convert to fraction form
    10,006.37/13,803.63 = 8,120.09/x
  3. Step 3: Cross multiply
    10,006.37x = 13,803.63 × 8,120.09
  4. Step 4: Simplify right side
    10,006.37x = 112,086,717.93
  5. Step 5: Solve for x
    x = 112,086,717.93/10,006.37
  6. Step 6: Final answer
    x = 11,201.54

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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.