Home / 13,164.20-19,745.88-5,262.80

Finding the Fourth Proportional to 13,164.20, 19,745.88 and 5,262.80

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Solution

The fourth proportional to 13,164.20, 19,745.88 and 5,262.80 is: 7,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.20 : 19,745.88 = 5,262.80 : x
  2. Step 2: Convert to fraction form
    13,164.20/19,745.88 = 5,262.80/x
  3. Step 3: Cross multiply
    13,164.20x = 19,745.88 × 5,262.80
  4. Step 4: Simplify right side
    13,164.20x = 103,918,617.26
  5. Step 5: Solve for x
    x = 103,918,617.26/13,164.20
  6. Step 6: Final answer
    x = 7,894.03

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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.