Home / 13,147.92-18,144.14-7,483.79

Finding the Fourth Proportional to 13,147.92, 18,144.14 and 7,483.79

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Solution

The fourth proportional to 13,147.92, 18,144.14 and 7,483.79 is: 10,327.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.92 : 18,144.14 = 7,483.79 : x
  2. Step 2: Convert to fraction form
    13,147.92/18,144.14 = 7,483.79/x
  3. Step 3: Cross multiply
    13,147.92x = 18,144.14 × 7,483.79
  4. Step 4: Simplify right side
    13,147.92x = 135,786,941.43
  5. Step 5: Solve for x
    x = 135,786,941.43/13,147.92
  6. Step 6: Final answer
    x = 10,327.64

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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.