Home / 13,944.08-19,231.52-12,261.92

Finding the Fourth Proportional to 13,944.08, 19,231.52 and 12,261.92

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Solution

The fourth proportional to 13,944.08, 19,231.52 and 12,261.92 is: 16,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.08 : 19,231.52 = 12,261.92 : x
  2. Step 2: Convert to fraction form
    13,944.08/19,231.52 = 12,261.92/x
  3. Step 3: Cross multiply
    13,944.08x = 19,231.52 × 12,261.92
  4. Step 4: Simplify right side
    13,944.08x = 235,815,359.72
  5. Step 5: Solve for x
    x = 235,815,359.72/13,944.08
  6. Step 6: Final answer
    x = 16,911.50

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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.