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Finding the Fourth Proportional to 18,507.83, 25,524.65 and 13,119.60

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Solution

The fourth proportional to 18,507.83, 25,524.65 and 13,119.60 is: 18,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.83 : 25,524.65 = 13,119.60 : x
  2. Step 2: Convert to fraction form
    18,507.83/25,524.65 = 13,119.60/x
  3. Step 3: Cross multiply
    18,507.83x = 25,524.65 × 13,119.60
  4. Step 4: Simplify right side
    18,507.83x = 334,873,326.66
  5. Step 5: Solve for x
    x = 334,873,326.66/18,507.83
  6. Step 6: Final answer
    x = 18,093.61

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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.