Home / 13,416.06-18,514.23-8,383.20

Finding the Fourth Proportional to 13,416.06, 18,514.23 and 8,383.20

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Solution

The fourth proportional to 13,416.06, 18,514.23 and 8,383.20 is: 11,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.06 : 18,514.23 = 8,383.20 : x
  2. Step 2: Convert to fraction form
    13,416.06/18,514.23 = 8,383.20/x
  3. Step 3: Cross multiply
    13,416.06x = 18,514.23 × 8,383.20
  4. Step 4: Simplify right side
    13,416.06x = 155,208,492.94
  5. Step 5: Solve for x
    x = 155,208,492.94/13,416.06
  6. Step 6: Final answer
    x = 11,568.86

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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.