Home / 18,519.94-25,557.32-10,021.87

Finding the Fourth Proportional to 18,519.94, 25,557.32 and 10,021.87

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Solution

The fourth proportional to 18,519.94, 25,557.32 and 10,021.87 is: 13,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.94 : 25,557.32 = 10,021.87 : x
  2. Step 2: Convert to fraction form
    18,519.94/25,557.32 = 10,021.87/x
  3. Step 3: Cross multiply
    18,519.94x = 25,557.32 × 10,021.87
  4. Step 4: Simplify right side
    18,519.94x = 256,131,960.69
  5. Step 5: Solve for x
    x = 256,131,960.69/18,519.94
  6. Step 6: Final answer
    x = 13,830.07

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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.