Home / 13,918.24-20,880.78-4,057.60

Finding the Fourth Proportional to 13,918.24, 20,880.78 and 4,057.60

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Solution

The fourth proportional to 13,918.24, 20,880.78 and 4,057.60 is: 6,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.24 : 20,880.78 = 4,057.60 : x
  2. Step 2: Convert to fraction form
    13,918.24/20,880.78 = 4,057.60/x
  3. Step 3: Cross multiply
    13,918.24x = 20,880.78 × 4,057.60
  4. Step 4: Simplify right side
    13,918.24x = 84,725,852.93
  5. Step 5: Solve for x
    x = 84,725,852.93/13,918.24
  6. Step 6: Final answer
    x = 6,087.40

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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.