Home / 13,452.13-20,186.70-5,133.03

Finding the Fourth Proportional to 13,452.13, 20,186.70 and 5,133.03

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Solution

The fourth proportional to 13,452.13, 20,186.70 and 5,133.03 is: 7,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.13 : 20,186.70 = 5,133.03 : x
  2. Step 2: Convert to fraction form
    13,452.13/20,186.70 = 5,133.03/x
  3. Step 3: Cross multiply
    13,452.13x = 20,186.70 × 5,133.03
  4. Step 4: Simplify right side
    13,452.13x = 103,618,936.70
  5. Step 5: Solve for x
    x = 103,618,936.70/13,452.13
  6. Step 6: Final answer
    x = 7,702.79

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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.