Home / 8,450.56-12,679.08-3,518.88

Finding the Fourth Proportional to 8,450.56, 12,679.08 and 3,518.88

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Solution

The fourth proportional to 8,450.56, 12,679.08 and 3,518.88 is: 5,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.56 : 12,679.08 = 3,518.88 : x
  2. Step 2: Convert to fraction form
    8,450.56/12,679.08 = 3,518.88/x
  3. Step 3: Cross multiply
    8,450.56x = 12,679.08 × 3,518.88
  4. Step 4: Simplify right side
    8,450.56x = 44,616,097.64
  5. Step 5: Solve for x
    x = 44,616,097.64/8,450.56
  6. Step 6: Final answer
    x = 5,279.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.