Home / 18,643.66-25,727.49-10,680.35

Finding the Fourth Proportional to 18,643.66, 25,727.49 and 10,680.35

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Solution

The fourth proportional to 18,643.66, 25,727.49 and 10,680.35 is: 14,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643.66 : 25,727.49 = 10,680.35 : x
  2. Step 2: Convert to fraction form
    18,643.66/25,727.49 = 10,680.35/x
  3. Step 3: Cross multiply
    18,643.66x = 25,727.49 × 10,680.35
  4. Step 4: Simplify right side
    18,643.66x = 274,778,469.18
  5. Step 5: Solve for x
    x = 274,778,469.18/18,643.66
  6. Step 6: Final answer
    x = 14,738.44

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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.