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Finding the Fourth Proportional to 9,263.86, 12,790.10 and 8,267.44

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Solution

The fourth proportional to 9,263.86, 12,790.10 and 8,267.44 is: 11,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,263.86 : 12,790.10 = 8,267.44 : x
  2. Step 2: Convert to fraction form
    9,263.86/12,790.10 = 8,267.44/x
  3. Step 3: Cross multiply
    9,263.86x = 12,790.10 × 8,267.44
  4. Step 4: Simplify right side
    9,263.86x = 105,741,384.34
  5. Step 5: Solve for x
    x = 105,741,384.34/9,263.86
  6. Step 6: Final answer
    x = 11,414.40

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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.