Home / 18,409.24-25,401.26-10,857.94

Finding the Fourth Proportional to 18,409.24, 25,401.26 and 10,857.94

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Solution

The fourth proportional to 18,409.24, 25,401.26 and 10,857.94 is: 14,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.24 : 25,401.26 = 10,857.94 : x
  2. Step 2: Convert to fraction form
    18,409.24/25,401.26 = 10,857.94/x
  3. Step 3: Cross multiply
    18,409.24x = 25,401.26 × 10,857.94
  4. Step 4: Simplify right side
    18,409.24x = 275,805,357.00
  5. Step 5: Solve for x
    x = 275,805,357.00/18,409.24
  6. Step 6: Final answer
    x = 14,981.90

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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.