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Finding the Fourth Proportional to 18,144.60, 25,037.82 and 10,185

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Solution

The fourth proportional to 18,144.60, 25,037.82 and 10,185 is: 14,054.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.60 : 25,037.82 = 10,185 : x
  2. Step 2: Convert to fraction form
    18,144.60/25,037.82 = 10,185/x
  3. Step 3: Cross multiply
    18,144.60x = 25,037.82 × 10,185
  4. Step 4: Simplify right side
    18,144.60x = 255,010,196.70
  5. Step 5: Solve for x
    x = 255,010,196.70/18,144.60
  6. Step 6: Final answer
    x = 14,054.33

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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.