Home / 15,158.44-20,918.69-8,786.26

Finding the Fourth Proportional to 15,158.44, 20,918.69 and 8,786.26

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Solution

The fourth proportional to 15,158.44, 20,918.69 and 8,786.26 is: 12,125.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.44 : 20,918.69 = 8,786.26 : x
  2. Step 2: Convert to fraction form
    15,158.44/20,918.69 = 8,786.26/x
  3. Step 3: Cross multiply
    15,158.44x = 20,918.69 × 8,786.26
  4. Step 4: Simplify right side
    15,158.44x = 183,797,049.20
  5. Step 5: Solve for x
    x = 183,797,049.20/15,158.44
  6. Step 6: Final answer
    x = 12,125.06

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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.