Home / 8,405.39-12,608.06-2,561.99

Finding the Fourth Proportional to 8,405.39, 12,608.06 and 2,561.99

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Solution

The fourth proportional to 8,405.39, 12,608.06 and 2,561.99 is: 3,842.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.39 : 12,608.06 = 2,561.99 : x
  2. Step 2: Convert to fraction form
    8,405.39/12,608.06 = 2,561.99/x
  3. Step 3: Cross multiply
    8,405.39x = 12,608.06 × 2,561.99
  4. Step 4: Simplify right side
    8,405.39x = 32,301,761.56
  5. Step 5: Solve for x
    x = 32,301,761.56/8,405.39
  6. Step 6: Final answer
    x = 3,842.98

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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.