Home / 13,928.52-19,218.42-8,889.54

Finding the Fourth Proportional to 13,928.52, 19,218.42 and 8,889.54

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Solution

The fourth proportional to 13,928.52, 19,218.42 and 8,889.54 is: 12,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.52 : 19,218.42 = 8,889.54 : x
  2. Step 2: Convert to fraction form
    13,928.52/19,218.42 = 8,889.54/x
  3. Step 3: Cross multiply
    13,928.52x = 19,218.42 × 8,889.54
  4. Step 4: Simplify right side
    13,928.52x = 170,842,913.33
  5. Step 5: Solve for x
    x = 170,842,913.33/13,928.52
  6. Step 6: Final answer
    x = 12,265.69

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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.