Home / 13,427.04-20,132.40-11,453.70

Finding the Fourth Proportional to 13,427.04, 20,132.40 and 11,453.70

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Solution

The fourth proportional to 13,427.04, 20,132.40 and 11,453.70 is: 17,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.04 : 20,132.40 = 11,453.70 : x
  2. Step 2: Convert to fraction form
    13,427.04/20,132.40 = 11,453.70/x
  3. Step 3: Cross multiply
    13,427.04x = 20,132.40 × 11,453.70
  4. Step 4: Simplify right side
    13,427.04x = 230,590,469.88
  5. Step 5: Solve for x
    x = 230,590,469.88/13,427.04
  6. Step 6: Final answer
    x = 17,173.59

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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.