Home / 13,514.94-18,647.16-8,209.85

Finding the Fourth Proportional to 13,514.94, 18,647.16 and 8,209.85

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Solution

The fourth proportional to 13,514.94, 18,647.16 and 8,209.85 is: 11,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.94 : 18,647.16 = 8,209.85 : x
  2. Step 2: Convert to fraction form
    13,514.94/18,647.16 = 8,209.85/x
  3. Step 3: Cross multiply
    13,514.94x = 18,647.16 × 8,209.85
  4. Step 4: Simplify right side
    13,514.94x = 153,090,293.29
  5. Step 5: Solve for x
    x = 153,090,293.29/13,514.94
  6. Step 6: Final answer
    x = 11,327.49

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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.