Home / 11,941.40-17,911.19-4,919.63

Finding the Fourth Proportional to 11,941.40, 17,911.19 and 4,919.63

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Solution

The fourth proportional to 11,941.40, 17,911.19 and 4,919.63 is: 7,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,941.40 : 17,911.19 = 4,919.63 : x
  2. Step 2: Convert to fraction form
    11,941.40/17,911.19 = 4,919.63/x
  3. Step 3: Cross multiply
    11,941.40x = 17,911.19 × 4,919.63
  4. Step 4: Simplify right side
    11,941.40x = 88,116,350.40
  5. Step 5: Solve for x
    x = 88,116,350.40/11,941.40
  6. Step 6: Final answer
    x = 7,379.06

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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.