Home / 18,825.75-25,979.40-10,327.86

Finding the Fourth Proportional to 18,825.75, 25,979.40 and 10,327.86

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Solution

The fourth proportional to 18,825.75, 25,979.40 and 10,327.86 is: 14,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.75 : 25,979.40 = 10,327.86 : x
  2. Step 2: Convert to fraction form
    18,825.75/25,979.40 = 10,327.86/x
  3. Step 3: Cross multiply
    18,825.75x = 25,979.40 × 10,327.86
  4. Step 4: Simplify right side
    18,825.75x = 268,311,606.08
  5. Step 5: Solve for x
    x = 268,311,606.08/18,825.75
  6. Step 6: Final answer
    x = 14,252.37

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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.