Home / 13,636.07-18,819.20-8,334.41

Finding the Fourth Proportional to 13,636.07, 18,819.20 and 8,334.41

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Solution

The fourth proportional to 13,636.07, 18,819.20 and 8,334.41 is: 11,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.07 : 18,819.20 = 8,334.41 : x
  2. Step 2: Convert to fraction form
    13,636.07/18,819.20 = 8,334.41/x
  3. Step 3: Cross multiply
    13,636.07x = 18,819.20 × 8,334.41
  4. Step 4: Simplify right side
    13,636.07x = 156,846,934.05
  5. Step 5: Solve for x
    x = 156,846,934.05/13,636.07
  6. Step 6: Final answer
    x = 11,502.36

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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.