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Finding the Fourth Proportional to 18,603.15, 27,864.63 and 8,727.63

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Solution

The fourth proportional to 18,603.15, 27,864.63 and 8,727.63 is: 13,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.15 : 27,864.63 = 8,727.63 : x
  2. Step 2: Convert to fraction form
    18,603.15/27,864.63 = 8,727.63/x
  3. Step 3: Cross multiply
    18,603.15x = 27,864.63 × 8,727.63
  4. Step 4: Simplify right side
    18,603.15x = 243,192,180.73
  5. Step 5: Solve for x
    x = 243,192,180.73/18,603.15
  6. Step 6: Final answer
    x = 13,072.63

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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.