Home / 12,004.40-18,009.30-3,684.80

Finding the Fourth Proportional to 12,004.40, 18,009.30 and 3,684.80

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Solution

The fourth proportional to 12,004.40, 18,009.30 and 3,684.80 is: 5,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.40 : 18,009.30 = 3,684.80 : x
  2. Step 2: Convert to fraction form
    12,004.40/18,009.30 = 3,684.80/x
  3. Step 3: Cross multiply
    12,004.40x = 18,009.30 × 3,684.80
  4. Step 4: Simplify right side
    12,004.40x = 66,360,668.64
  5. Step 5: Solve for x
    x = 66,360,668.64/12,004.40
  6. Step 6: Final answer
    x = 5,528.03

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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.