Home / 18,119.38-25,004.70-11,045.80

Finding the Fourth Proportional to 18,119.38, 25,004.70 and 11,045.80

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Solution

The fourth proportional to 18,119.38, 25,004.70 and 11,045.80 is: 15,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.38 : 25,004.70 = 11,045.80 : x
  2. Step 2: Convert to fraction form
    18,119.38/25,004.70 = 11,045.80/x
  3. Step 3: Cross multiply
    18,119.38x = 25,004.70 × 11,045.80
  4. Step 4: Simplify right side
    18,119.38x = 276,196,915.26
  5. Step 5: Solve for x
    x = 276,196,915.26/18,119.38
  6. Step 6: Final answer
    x = 15,243.18

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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.