Home / 13,372.03-18,455.48-7,629.49

Finding the Fourth Proportional to 13,372.03, 18,455.48 and 7,629.49

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Solution

The fourth proportional to 13,372.03, 18,455.48 and 7,629.49 is: 10,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.03 : 18,455.48 = 7,629.49 : x
  2. Step 2: Convert to fraction form
    13,372.03/18,455.48 = 7,629.49/x
  3. Step 3: Cross multiply
    13,372.03x = 18,455.48 × 7,629.49
  4. Step 4: Simplify right side
    13,372.03x = 140,805,900.11
  5. Step 5: Solve for x
    x = 140,805,900.11/13,372.03
  6. Step 6: Final answer
    x = 10,529.88

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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.