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Finding the Fourth Proportional to 13,254.75, 18,277.99 and 8,776.86

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Solution

The fourth proportional to 13,254.75, 18,277.99 and 8,776.86 is: 12,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.75 : 18,277.99 = 8,776.86 : x
  2. Step 2: Convert to fraction form
    13,254.75/18,277.99 = 8,776.86/x
  3. Step 3: Cross multiply
    13,254.75x = 18,277.99 × 8,776.86
  4. Step 4: Simplify right side
    13,254.75x = 160,423,447.73
  5. Step 5: Solve for x
    x = 160,423,447.73/13,254.75
  6. Step 6: Final answer
    x = 12,103.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.