Home / 18,255.66-25,206.03-11,986.26

Finding the Fourth Proportional to 18,255.66, 25,206.03 and 11,986.26

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Solution

The fourth proportional to 18,255.66, 25,206.03 and 11,986.26 is: 16,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.66 : 25,206.03 = 11,986.26 : x
  2. Step 2: Convert to fraction form
    18,255.66/25,206.03 = 11,986.26/x
  3. Step 3: Cross multiply
    18,255.66x = 25,206.03 × 11,986.26
  4. Step 4: Simplify right side
    18,255.66x = 302,126,029.15
  5. Step 5: Solve for x
    x = 302,126,029.15/18,255.66
  6. Step 6: Final answer
    x = 16,549.72

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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.