Home / 18,118.36-27,176.22-5,638.04

Finding the Fourth Proportional to 18,118.36, 27,176.22 and 5,638.04

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Solution

The fourth proportional to 18,118.36, 27,176.22 and 5,638.04 is: 8,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.36 : 27,176.22 = 5,638.04 : x
  2. Step 2: Convert to fraction form
    18,118.36/27,176.22 = 5,638.04/x
  3. Step 3: Cross multiply
    18,118.36x = 27,176.22 × 5,638.04
  4. Step 4: Simplify right side
    18,118.36x = 153,220,615.41
  5. Step 5: Solve for x
    x = 153,220,615.41/18,118.36
  6. Step 6: Final answer
    x = 8,456.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.