Home / 13,132.21-18,122.70-7,467.18

Finding the Fourth Proportional to 13,132.21, 18,122.70 and 7,467.18

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Solution

The fourth proportional to 13,132.21, 18,122.70 and 7,467.18 is: 10,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.21 : 18,122.70 = 7,467.18 : x
  2. Step 2: Convert to fraction form
    13,132.21/18,122.70 = 7,467.18/x
  3. Step 3: Cross multiply
    13,132.21x = 18,122.70 × 7,467.18
  4. Step 4: Simplify right side
    13,132.21x = 135,325,462.99
  5. Step 5: Solve for x
    x = 135,325,462.99/13,132.21
  6. Step 6: Final answer
    x = 10,304.85

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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.