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Finding the Fourth Proportional to 13,986.92, 19,301.22 and 7,698.92

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Solution

The fourth proportional to 13,986.92, 19,301.22 and 7,698.92 is: 10,624.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.92 : 19,301.22 = 7,698.92 : x
  2. Step 2: Convert to fraction form
    13,986.92/19,301.22 = 7,698.92/x
  3. Step 3: Cross multiply
    13,986.92x = 19,301.22 × 7,698.92
  4. Step 4: Simplify right side
    13,986.92x = 148,598,548.68
  5. Step 5: Solve for x
    x = 148,598,548.68/13,986.92
  6. Step 6: Final answer
    x = 10,624.11

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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.