Home / 13,975.97-20,965.42-6,957.72

Finding the Fourth Proportional to 13,975.97, 20,965.42 and 6,957.72

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Solution

The fourth proportional to 13,975.97, 20,965.42 and 6,957.72 is: 10,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.97 : 20,965.42 = 6,957.72 : x
  2. Step 2: Convert to fraction form
    13,975.97/20,965.42 = 6,957.72/x
  3. Step 3: Cross multiply
    13,975.97x = 20,965.42 × 6,957.72
  4. Step 4: Simplify right side
    13,975.97x = 145,871,504.65
  5. Step 5: Solve for x
    x = 145,871,504.65/13,975.97
  6. Step 6: Final answer
    x = 10,437.31

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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.