Home / 13,993.81-20,975.93-4,631.43

Finding the Fourth Proportional to 13,993.81, 20,975.93 and 4,631.43

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Solution

The fourth proportional to 13,993.81, 20,975.93 and 4,631.43 is: 6,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.81 : 20,975.93 = 4,631.43 : x
  2. Step 2: Convert to fraction form
    13,993.81/20,975.93 = 4,631.43/x
  3. Step 3: Cross multiply
    13,993.81x = 20,975.93 × 4,631.43
  4. Step 4: Simplify right side
    13,993.81x = 97,148,551.48
  5. Step 5: Solve for x
    x = 97,148,551.48/13,993.81
  6. Step 6: Final answer
    x = 6,942.25

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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.