Home / 13,372.09-18,451.60-7,404.11

Finding the Fourth Proportional to 13,372.09, 18,451.60 and 7,404.11

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Solution

The fourth proportional to 13,372.09, 18,451.60 and 7,404.11 is: 10,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.09 : 18,451.60 = 7,404.11 : x
  2. Step 2: Convert to fraction form
    13,372.09/18,451.60 = 7,404.11/x
  3. Step 3: Cross multiply
    13,372.09x = 18,451.60 × 7,404.11
  4. Step 4: Simplify right side
    13,372.09x = 136,617,634.50
  5. Step 5: Solve for x
    x = 136,617,634.50/13,372.09
  6. Step 6: Final answer
    x = 10,216.63

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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.