Home / 13,300.78-18,346.37-8,193.68

Finding the Fourth Proportional to 13,300.78, 18,346.37 and 8,193.68

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Solution

The fourth proportional to 13,300.78, 18,346.37 and 8,193.68 is: 11,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.78 : 18,346.37 = 8,193.68 : x
  2. Step 2: Convert to fraction form
    13,300.78/18,346.37 = 8,193.68/x
  3. Step 3: Cross multiply
    13,300.78x = 18,346.37 × 8,193.68
  4. Step 4: Simplify right side
    13,300.78x = 150,324,284.94
  5. Step 5: Solve for x
    x = 150,324,284.94/13,300.78
  6. Step 6: Final answer
    x = 11,301.91

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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.