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Finding the Fourth Proportional to 8,783.63, 13,154.73 and 7,623.09

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Solution

The fourth proportional to 8,783.63, 13,154.73 and 7,623.09 is: 11,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.63 : 13,154.73 = 7,623.09 : x
  2. Step 2: Convert to fraction form
    8,783.63/13,154.73 = 7,623.09/x
  3. Step 3: Cross multiply
    8,783.63x = 13,154.73 × 7,623.09
  4. Step 4: Simplify right side
    8,783.63x = 100,279,690.72
  5. Step 5: Solve for x
    x = 100,279,690.72/8,783.63
  6. Step 6: Final answer
    x = 11,416.66

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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.