Home / 13,514.38-18,647.57-7,850.05

Finding the Fourth Proportional to 13,514.38, 18,647.57 and 7,850.05

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Solution

The fourth proportional to 13,514.38, 18,647.57 and 7,850.05 is: 10,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.38 : 18,647.57 = 7,850.05 : x
  2. Step 2: Convert to fraction form
    13,514.38/18,647.57 = 7,850.05/x
  3. Step 3: Cross multiply
    13,514.38x = 18,647.57 × 7,850.05
  4. Step 4: Simplify right side
    13,514.38x = 146,384,329.88
  5. Step 5: Solve for x
    x = 146,384,329.88/13,514.38
  6. Step 6: Final answer
    x = 10,831.75

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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.