Home / 13,928.52-19,221.36-8,263.56

Finding the Fourth Proportional to 13,928.52, 19,221.36 and 8,263.56

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Solution

The fourth proportional to 13,928.52, 19,221.36 and 8,263.56 is: 11,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.52 : 19,221.36 = 8,263.56 : x
  2. Step 2: Convert to fraction form
    13,928.52/19,221.36 = 8,263.56/x
  3. Step 3: Cross multiply
    13,928.52x = 19,221.36 × 8,263.56
  4. Step 4: Simplify right side
    13,928.52x = 158,836,861.64
  5. Step 5: Solve for x
    x = 158,836,861.64/13,928.52
  6. Step 6: Final answer
    x = 11,403.71

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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.