Home / 13,668.14-18,855.38-8,003.00

Finding the Fourth Proportional to 13,668.14, 18,855.38 and 8,003.00

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Solution

The fourth proportional to 13,668.14, 18,855.38 and 8,003.00 is: 11,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.14 : 18,855.38 = 8,003.00 : x
  2. Step 2: Convert to fraction form
    13,668.14/18,855.38 = 8,003.00/x
  3. Step 3: Cross multiply
    13,668.14x = 18,855.38 × 8,003.00
  4. Step 4: Simplify right side
    13,668.14x = 150,899,673.29
  5. Step 5: Solve for x
    x = 150,899,673.29/13,668.14
  6. Step 6: Final answer
    x = 11,040.25

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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.