Home / 13,599.21-18,768.26-9,132.26

Finding the Fourth Proportional to 13,599.21, 18,768.26 and 9,132.26

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Solution

The fourth proportional to 13,599.21, 18,768.26 and 9,132.26 is: 12,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.21 : 18,768.26 = 9,132.26 : x
  2. Step 2: Convert to fraction form
    13,599.21/18,768.26 = 9,132.26/x
  3. Step 3: Cross multiply
    13,599.21x = 18,768.26 × 9,132.26
  4. Step 4: Simplify right side
    13,599.21x = 171,396,584.41
  5. Step 5: Solve for x
    x = 171,396,584.41/13,599.21
  6. Step 6: Final answer
    x = 12,603.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.