Home / 18,242.34-25,172.94-10,687.68

Finding the Fourth Proportional to 18,242.34, 25,172.94 and 10,687.68

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Solution

The fourth proportional to 18,242.34, 25,172.94 and 10,687.68 is: 14,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.34 : 25,172.94 = 10,687.68 : x
  2. Step 2: Convert to fraction form
    18,242.34/25,172.94 = 10,687.68/x
  3. Step 3: Cross multiply
    18,242.34x = 25,172.94 × 10,687.68
  4. Step 4: Simplify right side
    18,242.34x = 269,040,327.38
  5. Step 5: Solve for x
    x = 269,040,327.38/18,242.34
  6. Step 6: Final answer
    x = 14,748.13

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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.