Home / 13,850.96-19,111.78-8,186.63

Finding the Fourth Proportional to 13,850.96, 19,111.78 and 8,186.63

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Solution

The fourth proportional to 13,850.96, 19,111.78 and 8,186.63 is: 11,296.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.96 : 19,111.78 = 8,186.63 : x
  2. Step 2: Convert to fraction form
    13,850.96/19,111.78 = 8,186.63/x
  3. Step 3: Cross multiply
    13,850.96x = 19,111.78 × 8,186.63
  4. Step 4: Simplify right side
    13,850.96x = 156,461,029.69
  5. Step 5: Solve for x
    x = 156,461,029.69/13,850.96
  6. Step 6: Final answer
    x = 11,296.04

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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.