Home / 13,975.36-20,960.64-4,114.56

Finding the Fourth Proportional to 13,975.36, 20,960.64 and 4,114.56

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Solution

The fourth proportional to 13,975.36, 20,960.64 and 4,114.56 is: 6,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.36 : 20,960.64 = 4,114.56 : x
  2. Step 2: Convert to fraction form
    13,975.36/20,960.64 = 4,114.56/x
  3. Step 3: Cross multiply
    13,975.36x = 20,960.64 × 4,114.56
  4. Step 4: Simplify right side
    13,975.36x = 86,243,810.92
  5. Step 5: Solve for x
    x = 86,243,810.92/13,975.36
  6. Step 6: Final answer
    x = 6,171.13

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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.