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Finding the Fourth Proportional to 18,508.88, 27,737.40 and 9,730.64

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Solution

The fourth proportional to 18,508.88, 27,737.40 and 9,730.64 is: 14,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.88 : 27,737.40 = 9,730.64 : x
  2. Step 2: Convert to fraction form
    18,508.88/27,737.40 = 9,730.64/x
  3. Step 3: Cross multiply
    18,508.88x = 27,737.40 × 9,730.64
  4. Step 4: Simplify right side
    18,508.88x = 269,902,653.94
  5. Step 5: Solve for x
    x = 269,902,653.94/18,508.88
  6. Step 6: Final answer
    x = 14,582.33

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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.