Home / 13,195.18-18,217.80-11,776.42

Finding the Fourth Proportional to 13,195.18, 18,217.80 and 11,776.42

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Solution

The fourth proportional to 13,195.18, 18,217.80 and 11,776.42 is: 16,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.18 : 18,217.80 = 11,776.42 : x
  2. Step 2: Convert to fraction form
    13,195.18/18,217.80 = 11,776.42/x
  3. Step 3: Cross multiply
    13,195.18x = 18,217.80 × 11,776.42
  4. Step 4: Simplify right side
    13,195.18x = 214,540,464.28
  5. Step 5: Solve for x
    x = 214,540,464.28/13,195.18
  6. Step 6: Final answer
    x = 16,259.00

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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.