Home / 18,628.56-25,707.36-10,245

Finding the Fourth Proportional to 18,628.56, 25,707.36 and 10,245

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Solution

The fourth proportional to 18,628.56, 25,707.36 and 10,245 is: 14,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.56 : 25,707.36 = 10,245 : x
  2. Step 2: Convert to fraction form
    18,628.56/25,707.36 = 10,245/x
  3. Step 3: Cross multiply
    18,628.56x = 25,707.36 × 10,245
  4. Step 4: Simplify right side
    18,628.56x = 263,371,903.20
  5. Step 5: Solve for x
    x = 263,371,903.20/18,628.56
  6. Step 6: Final answer
    x = 14,138.07

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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.