Home / 11,979.09-17,969.94-4,082.40

Finding the Fourth Proportional to 11,979.09, 17,969.94 and 4,082.40

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Solution

The fourth proportional to 11,979.09, 17,969.94 and 4,082.40 is: 6,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.09 : 17,969.94 = 4,082.40 : x
  2. Step 2: Convert to fraction form
    11,979.09/17,969.94 = 4,082.40/x
  3. Step 3: Cross multiply
    11,979.09x = 17,969.94 × 4,082.40
  4. Step 4: Simplify right side
    11,979.09x = 73,360,483.06
  5. Step 5: Solve for x
    x = 73,360,483.06/11,979.09
  6. Step 6: Final answer
    x = 6,124.04

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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.