Home / 13,928.37-19,220.31-8,263.65

Finding the Fourth Proportional to 13,928.37, 19,220.31 and 8,263.65

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Solution

The fourth proportional to 13,928.37, 19,220.31 and 8,263.65 is: 11,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.37 : 19,220.31 = 8,263.65 : x
  2. Step 2: Convert to fraction form
    13,928.37/19,220.31 = 8,263.65/x
  3. Step 3: Cross multiply
    13,928.37x = 19,220.31 × 8,263.65
  4. Step 4: Simplify right side
    13,928.37x = 158,829,914.73
  5. Step 5: Solve for x
    x = 158,829,914.73/13,928.37
  6. Step 6: Final answer
    x = 11,403.34

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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.