Home / 9,116.20-13,674.30-8,309.80

Finding the Fourth Proportional to 9,116.20, 13,674.30 and 8,309.80

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Solution

The fourth proportional to 9,116.20, 13,674.30 and 8,309.80 is: 12,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.20 : 13,674.30 = 8,309.80 : x
  2. Step 2: Convert to fraction form
    9,116.20/13,674.30 = 8,309.80/x
  3. Step 3: Cross multiply
    9,116.20x = 13,674.30 × 8,309.80
  4. Step 4: Simplify right side
    9,116.20x = 113,630,698.14
  5. Step 5: Solve for x
    x = 113,630,698.14/9,116.20
  6. Step 6: Final answer
    x = 12,464.70

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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.