Home / 8,460.23-12,695.12-3,198.81

Finding the Fourth Proportional to 8,460.23, 12,695.12 and 3,198.81

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Solution

The fourth proportional to 8,460.23, 12,695.12 and 3,198.81 is: 4,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.23 : 12,695.12 = 3,198.81 : x
  2. Step 2: Convert to fraction form
    8,460.23/12,695.12 = 3,198.81/x
  3. Step 3: Cross multiply
    8,460.23x = 12,695.12 × 3,198.81
  4. Step 4: Simplify right side
    8,460.23x = 40,609,284.80
  5. Step 5: Solve for x
    x = 40,609,284.80/8,460.23
  6. Step 6: Final answer
    x = 4,800.02

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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.