Home / 18,786.75-25,925.72-10,403.25

Finding the Fourth Proportional to 18,786.75, 25,925.72 and 10,403.25

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Solution

The fourth proportional to 18,786.75, 25,925.72 and 10,403.25 is: 14,356.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.75 : 25,925.72 = 10,403.25 : x
  2. Step 2: Convert to fraction form
    18,786.75/25,925.72 = 10,403.25/x
  3. Step 3: Cross multiply
    18,786.75x = 25,925.72 × 10,403.25
  4. Step 4: Simplify right side
    18,786.75x = 269,711,694.57
  5. Step 5: Solve for x
    x = 269,711,694.57/18,786.75
  6. Step 6: Final answer
    x = 14,356.49

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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.