Home / 18,631.44-25,709.76-10,673.28

Finding the Fourth Proportional to 18,631.44, 25,709.76 and 10,673.28

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Solution

The fourth proportional to 18,631.44, 25,709.76 and 10,673.28 is: 14,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.44 : 25,709.76 = 10,673.28 : x
  2. Step 2: Convert to fraction form
    18,631.44/25,709.76 = 10,673.28/x
  3. Step 3: Cross multiply
    18,631.44x = 25,709.76 × 10,673.28
  4. Step 4: Simplify right side
    18,631.44x = 274,407,467.21
  5. Step 5: Solve for x
    x = 274,407,467.21/18,631.44
  6. Step 6: Final answer
    x = 14,728.19

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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.