Home / 18,986.55-28,480.29-5,839.02

Finding the Fourth Proportional to 18,986.55, 28,480.29 and 5,839.02

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Solution

The fourth proportional to 18,986.55, 28,480.29 and 5,839.02 is: 8,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.55 : 28,480.29 = 5,839.02 : x
  2. Step 2: Convert to fraction form
    18,986.55/28,480.29 = 5,839.02/x
  3. Step 3: Cross multiply
    18,986.55x = 28,480.29 × 5,839.02
  4. Step 4: Simplify right side
    18,986.55x = 166,296,982.92
  5. Step 5: Solve for x
    x = 166,296,982.92/18,986.55
  6. Step 6: Final answer
    x = 8,758.67

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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.