Home / 13,724.24-18,932.48-8,679.96

Finding the Fourth Proportional to 13,724.24, 18,932.48 and 8,679.96

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Solution

The fourth proportional to 13,724.24, 18,932.48 and 8,679.96 is: 11,973.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.24 : 18,932.48 = 8,679.96 : x
  2. Step 2: Convert to fraction form
    13,724.24/18,932.48 = 8,679.96/x
  3. Step 3: Cross multiply
    13,724.24x = 18,932.48 × 8,679.96
  4. Step 4: Simplify right side
    13,724.24x = 164,333,169.10
  5. Step 5: Solve for x
    x = 164,333,169.10/13,724.24
  6. Step 6: Final answer
    x = 11,973.94

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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.