Home / 13,528.90-20,296.23-7,986.37

Finding the Fourth Proportional to 13,528.90, 20,296.23 and 7,986.37

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Solution

The fourth proportional to 13,528.90, 20,296.23 and 7,986.37 is: 11,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.90 : 20,296.23 = 7,986.37 : x
  2. Step 2: Convert to fraction form
    13,528.90/20,296.23 = 7,986.37/x
  3. Step 3: Cross multiply
    13,528.90x = 20,296.23 × 7,986.37
  4. Step 4: Simplify right side
    13,528.90x = 162,093,202.39
  5. Step 5: Solve for x
    x = 162,093,202.39/13,528.90
  6. Step 6: Final answer
    x = 11,981.26

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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.