Home / 8,539.39-12,810.41-3,609.05

Finding the Fourth Proportional to 8,539.39, 12,810.41 and 3,609.05

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Solution

The fourth proportional to 8,539.39, 12,810.41 and 3,609.05 is: 5,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.39 : 12,810.41 = 3,609.05 : x
  2. Step 2: Convert to fraction form
    8,539.39/12,810.41 = 3,609.05/x
  3. Step 3: Cross multiply
    8,539.39x = 12,810.41 × 3,609.05
  4. Step 4: Simplify right side
    8,539.39x = 46,233,410.21
  5. Step 5: Solve for x
    x = 46,233,410.21/8,539.39
  6. Step 6: Final answer
    x = 5,414.13

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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.