Home / 13,941.18-20,906.08-6,918.64

Finding the Fourth Proportional to 13,941.18, 20,906.08 and 6,918.64

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Solution

The fourth proportional to 13,941.18, 20,906.08 and 6,918.64 is: 10,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.18 : 20,906.08 = 6,918.64 : x
  2. Step 2: Convert to fraction form
    13,941.18/20,906.08 = 6,918.64/x
  3. Step 3: Cross multiply
    13,941.18x = 20,906.08 × 6,918.64
  4. Step 4: Simplify right side
    13,941.18x = 144,641,571.77
  5. Step 5: Solve for x
    x = 144,641,571.77/13,941.18
  6. Step 6: Final answer
    x = 10,375.13

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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.