Home / 8,326.18-12,485.98-3,394.05

Finding the Fourth Proportional to 8,326.18, 12,485.98 and 3,394.05

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Solution

The fourth proportional to 8,326.18, 12,485.98 and 3,394.05 is: 5,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.18 : 12,485.98 = 3,394.05 : x
  2. Step 2: Convert to fraction form
    8,326.18/12,485.98 = 3,394.05/x
  3. Step 3: Cross multiply
    8,326.18x = 12,485.98 × 3,394.05
  4. Step 4: Simplify right side
    8,326.18x = 42,378,040.42
  5. Step 5: Solve for x
    x = 42,378,040.42/8,326.18
  6. Step 6: Final answer
    x = 5,089.73

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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.