Home / 16,812.48-25,183.20-13,678.08

Finding the Fourth Proportional to 16,812.48, 25,183.20 and 13,678.08

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Solution

The fourth proportional to 16,812.48, 25,183.20 and 13,678.08 is: 20,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.48 : 25,183.20 = 13,678.08 : x
  2. Step 2: Convert to fraction form
    16,812.48/25,183.20 = 13,678.08/x
  3. Step 3: Cross multiply
    16,812.48x = 25,183.20 × 13,678.08
  4. Step 4: Simplify right side
    16,812.48x = 344,457,824.26
  5. Step 5: Solve for x
    x = 344,457,824.26/16,812.48
  6. Step 6: Final answer
    x = 20,488.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.