Home / 9,209.79-13,811.99-3,285.72

Finding the Fourth Proportional to 9,209.79, 13,811.99 and 3,285.72

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Solution

The fourth proportional to 9,209.79, 13,811.99 and 3,285.72 is: 4,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.79 : 13,811.99 = 3,285.72 : x
  2. Step 2: Convert to fraction form
    9,209.79/13,811.99 = 3,285.72/x
  3. Step 3: Cross multiply
    9,209.79x = 13,811.99 × 3,285.72
  4. Step 4: Simplify right side
    9,209.79x = 45,382,315.35
  5. Step 5: Solve for x
    x = 45,382,315.35/9,209.79
  6. Step 6: Final answer
    x = 4,927.62

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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.