Home / 13,316.09-18,383.69-8,845.94

Finding the Fourth Proportional to 13,316.09, 18,383.69 and 8,845.94

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Solution

The fourth proportional to 13,316.09, 18,383.69 and 8,845.94 is: 12,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.09 : 18,383.69 = 8,845.94 : x
  2. Step 2: Convert to fraction form
    13,316.09/18,383.69 = 8,845.94/x
  3. Step 3: Cross multiply
    13,316.09x = 18,383.69 × 8,845.94
  4. Step 4: Simplify right side
    13,316.09x = 162,621,018.72
  5. Step 5: Solve for x
    x = 162,621,018.72/13,316.09
  6. Step 6: Final answer
    x = 12,212.37

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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.