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Finding the Fourth Proportional to 18,003.94, 27,015.63 and 8,769.94

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Solution

The fourth proportional to 18,003.94, 27,015.63 and 8,769.94 is: 13,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.94 : 27,015.63 = 8,769.94 : x
  2. Step 2: Convert to fraction form
    18,003.94/27,015.63 = 8,769.94/x
  3. Step 3: Cross multiply
    18,003.94x = 27,015.63 × 8,769.94
  4. Step 4: Simplify right side
    18,003.94x = 236,925,353.74
  5. Step 5: Solve for x
    x = 236,925,353.74/18,003.94
  6. Step 6: Final answer
    x = 13,159.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.