Home / 14,147.26-19,521.68-8,178.03

Finding the Fourth Proportional to 14,147.26, 19,521.68 and 8,178.03

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Solution

The fourth proportional to 14,147.26, 19,521.68 and 8,178.03 is: 11,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.26 : 19,521.68 = 8,178.03 : x
  2. Step 2: Convert to fraction form
    14,147.26/19,521.68 = 8,178.03/x
  3. Step 3: Cross multiply
    14,147.26x = 19,521.68 × 8,178.03
  4. Step 4: Simplify right side
    14,147.26x = 159,648,843.80
  5. Step 5: Solve for x
    x = 159,648,843.80/14,147.26
  6. Step 6: Final answer
    x = 11,284.79

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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.