Home / 13,986.42-19,301.27-7,698.75

Finding the Fourth Proportional to 13,986.42, 19,301.27 and 7,698.75

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Solution

The fourth proportional to 13,986.42, 19,301.27 and 7,698.75 is: 10,624.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.42 : 19,301.27 = 7,698.75 : x
  2. Step 2: Convert to fraction form
    13,986.42/19,301.27 = 7,698.75/x
  3. Step 3: Cross multiply
    13,986.42x = 19,301.27 × 7,698.75
  4. Step 4: Simplify right side
    13,986.42x = 148,595,613.92
  5. Step 5: Solve for x
    x = 148,595,613.92/13,986.42
  6. Step 6: Final answer
    x = 10,624.28

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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.