Home / 11,993.12-17,989.72-3,673.10

Finding the Fourth Proportional to 11,993.12, 17,989.72 and 3,673.10

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Solution

The fourth proportional to 11,993.12, 17,989.72 and 3,673.10 is: 5,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.12 : 17,989.72 = 3,673.10 : x
  2. Step 2: Convert to fraction form
    11,993.12/17,989.72 = 3,673.10/x
  3. Step 3: Cross multiply
    11,993.12x = 17,989.72 × 3,673.10
  4. Step 4: Simplify right side
    11,993.12x = 66,077,941.40
  5. Step 5: Solve for x
    x = 66,077,941.40/11,993.12
  6. Step 6: Final answer
    x = 5,509.66

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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.