Home / 13,372.74-18,453.60-7,404.08

Finding the Fourth Proportional to 13,372.74, 18,453.60 and 7,404.08

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Solution

The fourth proportional to 13,372.74, 18,453.60 and 7,404.08 is: 10,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.74 : 18,453.60 = 7,404.08 : x
  2. Step 2: Convert to fraction form
    13,372.74/18,453.60 = 7,404.08/x
  3. Step 3: Cross multiply
    13,372.74x = 18,453.60 × 7,404.08
  4. Step 4: Simplify right side
    13,372.74x = 136,631,838.42
  5. Step 5: Solve for x
    x = 136,631,838.42/13,372.74
  6. Step 6: Final answer
    x = 10,217.19

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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.