Home / 18,283.10-25,231.14-11,213.42

Finding the Fourth Proportional to 18,283.10, 25,231.14 and 11,213.42

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Solution

The fourth proportional to 18,283.10, 25,231.14 and 11,213.42 is: 15,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.10 : 25,231.14 = 11,213.42 : x
  2. Step 2: Convert to fraction form
    18,283.10/25,231.14 = 11,213.42/x
  3. Step 3: Cross multiply
    18,283.10x = 25,231.14 × 11,213.42
  4. Step 4: Simplify right side
    18,283.10x = 282,927,369.90
  5. Step 5: Solve for x
    x = 282,927,369.90/18,283.10
  6. Step 6: Final answer
    x = 15,474.80

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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.