Home / 13,081.60-19,615.68-3,846.40

Finding the Fourth Proportional to 13,081.60, 19,615.68 and 3,846.40

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Solution

The fourth proportional to 13,081.60, 19,615.68 and 3,846.40 is: 5,767.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.60 : 19,615.68 = 3,846.40 : x
  2. Step 2: Convert to fraction form
    13,081.60/19,615.68 = 3,846.40/x
  3. Step 3: Cross multiply
    13,081.60x = 19,615.68 × 3,846.40
  4. Step 4: Simplify right side
    13,081.60x = 75,449,751.55
  5. Step 5: Solve for x
    x = 75,449,751.55/13,081.60
  6. Step 6: Final answer
    x = 5,767.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.