Home / 13,179.08-18,185.10-7,589

Finding the Fourth Proportional to 13,179.08, 18,185.10 and 7,589

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Solution

The fourth proportional to 13,179.08, 18,185.10 and 7,589 is: 10,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.08 : 18,185.10 = 7,589 : x
  2. Step 2: Convert to fraction form
    13,179.08/18,185.10 = 7,589/x
  3. Step 3: Cross multiply
    13,179.08x = 18,185.10 × 7,589
  4. Step 4: Simplify right side
    13,179.08x = 138,006,723.90
  5. Step 5: Solve for x
    x = 138,006,723.90/13,179.08
  6. Step 6: Final answer
    x = 10,471.65

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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.