Home / 18,782.49-25,919.75-10,168.68

Finding the Fourth Proportional to 18,782.49, 25,919.75 and 10,168.68

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Solution

The fourth proportional to 18,782.49, 25,919.75 and 10,168.68 is: 14,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.49 : 25,919.75 = 10,168.68 : x
  2. Step 2: Convert to fraction form
    18,782.49/25,919.75 = 10,168.68/x
  3. Step 3: Cross multiply
    18,782.49x = 25,919.75 × 10,168.68
  4. Step 4: Simplify right side
    18,782.49x = 263,569,643.43
  5. Step 5: Solve for x
    x = 263,569,643.43/18,782.49
  6. Step 6: Final answer
    x = 14,032.73

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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.