Home / 13,391.06-20,087.53-3,530.25

Finding the Fourth Proportional to 13,391.06, 20,087.53 and 3,530.25

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Solution

The fourth proportional to 13,391.06, 20,087.53 and 3,530.25 is: 5,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.06 : 20,087.53 = 3,530.25 : x
  2. Step 2: Convert to fraction form
    13,391.06/20,087.53 = 3,530.25/x
  3. Step 3: Cross multiply
    13,391.06x = 20,087.53 × 3,530.25
  4. Step 4: Simplify right side
    13,391.06x = 70,913,993.96
  5. Step 5: Solve for x
    x = 70,913,993.96/13,391.06
  6. Step 6: Final answer
    x = 5,295.62

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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.