Home / 13,372.34-18,453.98-7,404.12

Finding the Fourth Proportional to 13,372.34, 18,453.98 and 7,404.12

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Solution

The fourth proportional to 13,372.34, 18,453.98 and 7,404.12 is: 10,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.34 : 18,453.98 = 7,404.12 : x
  2. Step 2: Convert to fraction form
    13,372.34/18,453.98 = 7,404.12/x
  3. Step 3: Cross multiply
    13,372.34x = 18,453.98 × 7,404.12
  4. Step 4: Simplify right side
    13,372.34x = 136,635,353.11
  5. Step 5: Solve for x
    x = 136,635,353.11/13,372.34
  6. Step 6: Final answer
    x = 10,217.76

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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.