Home / 13,636.32-18,819.54-8,334.66

Finding the Fourth Proportional to 13,636.32, 18,819.54 and 8,334.66

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Solution

The fourth proportional to 13,636.32, 18,819.54 and 8,334.66 is: 11,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.32 : 18,819.54 = 8,334.66 : x
  2. Step 2: Convert to fraction form
    13,636.32/18,819.54 = 8,334.66/x
  3. Step 3: Cross multiply
    13,636.32x = 18,819.54 × 8,334.66
  4. Step 4: Simplify right side
    13,636.32x = 156,854,467.26
  5. Step 5: Solve for x
    x = 156,854,467.26/13,636.32
  6. Step 6: Final answer
    x = 11,502.70

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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.