Home / 18,382.28-25,363.12-10,828.02

Finding the Fourth Proportional to 18,382.28, 25,363.12 and 10,828.02

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Solution

The fourth proportional to 18,382.28, 25,363.12 and 10,828.02 is: 14,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.28 : 25,363.12 = 10,828.02 : x
  2. Step 2: Convert to fraction form
    18,382.28/25,363.12 = 10,828.02/x
  3. Step 3: Cross multiply
    18,382.28x = 25,363.12 × 10,828.02
  4. Step 4: Simplify right side
    18,382.28x = 274,632,370.62
  5. Step 5: Solve for x
    x = 274,632,370.62/18,382.28
  6. Step 6: Final answer
    x = 14,940.06

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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.