Home / 13,329.27-18,394.04-8,786.38

Finding the Fourth Proportional to 13,329.27, 18,394.04 and 8,786.38

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Solution

The fourth proportional to 13,329.27, 18,394.04 and 8,786.38 is: 12,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.27 : 18,394.04 = 8,786.38 : x
  2. Step 2: Convert to fraction form
    13,329.27/18,394.04 = 8,786.38/x
  3. Step 3: Cross multiply
    13,329.27x = 18,394.04 × 8,786.38
  4. Step 4: Simplify right side
    13,329.27x = 161,617,025.18
  5. Step 5: Solve for x
    x = 161,617,025.18/13,329.27
  6. Step 6: Final answer
    x = 12,124.97

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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.