Home / 13,636.19-18,819.36-8,334.54

Finding the Fourth Proportional to 13,636.19, 18,819.36 and 8,334.54

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Solution

The fourth proportional to 13,636.19, 18,819.36 and 8,334.54 is: 11,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.19 : 18,819.36 = 8,334.54 : x
  2. Step 2: Convert to fraction form
    13,636.19/18,819.36 = 8,334.54/x
  3. Step 3: Cross multiply
    13,636.19x = 18,819.36 × 8,334.54
  4. Step 4: Simplify right side
    13,636.19x = 156,850,708.69
  5. Step 5: Solve for x
    x = 156,850,708.69/13,636.19
  6. Step 6: Final answer
    x = 11,502.53

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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.