Home / 13,372.70-18,453.87-7,404.62

Finding the Fourth Proportional to 13,372.70, 18,453.87 and 7,404.62

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Solution

The fourth proportional to 13,372.70, 18,453.87 and 7,404.62 is: 10,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.70 : 18,453.87 = 7,404.62 : x
  2. Step 2: Convert to fraction form
    13,372.70/18,453.87 = 7,404.62/x
  3. Step 3: Cross multiply
    13,372.70x = 18,453.87 × 7,404.62
  4. Step 4: Simplify right side
    13,372.70x = 136,643,894.88
  5. Step 5: Solve for x
    x = 136,643,894.88/13,372.70
  6. Step 6: Final answer
    x = 10,218.12

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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.