Home / 13,975.60-19,286.22-7,687.96

Finding the Fourth Proportional to 13,975.60, 19,286.22 and 7,687.96

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Solution

The fourth proportional to 13,975.60, 19,286.22 and 7,687.96 is: 10,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.60 : 19,286.22 = 7,687.96 : x
  2. Step 2: Convert to fraction form
    13,975.60/19,286.22 = 7,687.96/x
  3. Step 3: Cross multiply
    13,975.60x = 19,286.22 × 7,687.96
  4. Step 4: Simplify right side
    13,975.60x = 148,271,687.91
  5. Step 5: Solve for x
    x = 148,271,687.91/13,975.60
  6. Step 6: Final answer
    x = 10,609.33

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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.