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Finding the Fourth Proportional to 18,469, 27,703.23 and 8,602.75

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Solution

The fourth proportional to 18,469, 27,703.23 and 8,602.75 is: 12,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,469 : 27,703.23 = 8,602.75 : x
  2. Step 2: Convert to fraction form
    18,469/27,703.23 = 8,602.75/x
  3. Step 3: Cross multiply
    18,469x = 27,703.23 × 8,602.75
  4. Step 4: Simplify right side
    18,469x = 238,323,961.88
  5. Step 5: Solve for x
    x = 238,323,961.88/18,469
  6. Step 6: Final answer
    x = 12,904.00

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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.