Home / 18,359.36-25,339.99-10,405.97

Finding the Fourth Proportional to 18,359.36, 25,339.99 and 10,405.97

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Solution

The fourth proportional to 18,359.36, 25,339.99 and 10,405.97 is: 14,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.36 : 25,339.99 = 10,405.97 : x
  2. Step 2: Convert to fraction form
    18,359.36/25,339.99 = 10,405.97/x
  3. Step 3: Cross multiply
    18,359.36x = 25,339.99 × 10,405.97
  4. Step 4: Simplify right side
    18,359.36x = 263,687,137.56
  5. Step 5: Solve for x
    x = 263,687,137.56/18,359.36
  6. Step 6: Final answer
    x = 14,362.55

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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.