Home / 18,196.68-25,118.06-11,486.72

Finding the Fourth Proportional to 18,196.68, 25,118.06 and 11,486.72

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Solution

The fourth proportional to 18,196.68, 25,118.06 and 11,486.72 is: 15,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,196.68 : 25,118.06 = 11,486.72 : x
  2. Step 2: Convert to fraction form
    18,196.68/25,118.06 = 11,486.72/x
  3. Step 3: Cross multiply
    18,196.68x = 25,118.06 × 11,486.72
  4. Step 4: Simplify right side
    18,196.68x = 288,523,939.14
  5. Step 5: Solve for x
    x = 288,523,939.14/18,196.68
  6. Step 6: Final answer
    x = 15,855.86

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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.