Home / 13,229,556.76-18,261,068.34-8,575,128.76

Finding the Fourth Proportional to 13,229,556.76, 18,261,068.34 and 8,575,128.76

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Solution

The fourth proportional to 13,229,556.76, 18,261,068.34 and 8,575,128.76 is: 11,836,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229,556.76 : 18,261,068.34 = 8,575,128.76 : x
  2. Step 2: Convert to fraction form
    13,229,556.76/18,261,068.34 = 8,575,128.76/x
  3. Step 3: Cross multiply
    13,229,556.76x = 18,261,068.34 × 8,575,128.76
  4. Step 4: Simplify right side
    13,229,556.76x = 156,591,012,310,659.44
  5. Step 5: Solve for x
    x = 156,591,012,310,659.44/13,229,556.76
  6. Step 6: Final answer
    x = 11,836,451.90

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Double scale
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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.