Home / 13,107.08-18,093.89-8,394.05

Finding the Fourth Proportional to 13,107.08, 18,093.89 and 8,394.05

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Solution

The fourth proportional to 13,107.08, 18,093.89 and 8,394.05 is: 11,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.08 : 18,093.89 = 8,394.05 : x
  2. Step 2: Convert to fraction form
    13,107.08/18,093.89 = 8,394.05/x
  3. Step 3: Cross multiply
    13,107.08x = 18,093.89 × 8,394.05
  4. Step 4: Simplify right side
    13,107.08x = 151,880,947.87
  5. Step 5: Solve for x
    x = 151,880,947.87/13,107.08
  6. Step 6: Final answer
    x = 11,587.71

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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.