Home / 18,213.80-25,136.88-11,047.46

Finding the Fourth Proportional to 18,213.80, 25,136.88 and 11,047.46

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Solution

The fourth proportional to 18,213.80, 25,136.88 and 11,047.46 is: 15,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.80 : 25,136.88 = 11,047.46 : x
  2. Step 2: Convert to fraction form
    18,213.80/25,136.88 = 11,047.46/x
  3. Step 3: Cross multiply
    18,213.80x = 25,136.88 × 11,047.46
  4. Step 4: Simplify right side
    18,213.80x = 277,698,676.32
  5. Step 5: Solve for x
    x = 277,698,676.32/18,213.80
  6. Step 6: Final answer
    x = 15,246.61

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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.