Home / 13,675.62-18,867.29-10,489.49

Finding the Fourth Proportional to 13,675.62, 18,867.29 and 10,489.49

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Solution

The fourth proportional to 13,675.62, 18,867.29 and 10,489.49 is: 14,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.62 : 18,867.29 = 10,489.49 : x
  2. Step 2: Convert to fraction form
    13,675.62/18,867.29 = 10,489.49/x
  3. Step 3: Cross multiply
    13,675.62x = 18,867.29 × 10,489.49
  4. Step 4: Simplify right side
    13,675.62x = 197,908,249.78
  5. Step 5: Solve for x
    x = 197,908,249.78/13,675.62
  6. Step 6: Final answer
    x = 14,471.61

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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.