Home / 13,636.85-18,819.15-8,334.59

Finding the Fourth Proportional to 13,636.85, 18,819.15 and 8,334.59

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Solution

The fourth proportional to 13,636.85, 18,819.15 and 8,334.59 is: 11,501.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.85 : 18,819.15 = 8,334.59 : x
  2. Step 2: Convert to fraction form
    13,636.85/18,819.15 = 8,334.59/x
  3. Step 3: Cross multiply
    13,636.85x = 18,819.15 × 8,334.59
  4. Step 4: Simplify right side
    13,636.85x = 156,849,805.30
  5. Step 5: Solve for x
    x = 156,849,805.30/13,636.85
  6. Step 6: Final answer
    x = 11,501.91

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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.