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Finding the Fourth Proportional to 12,503.30, 17,226.86 and 8,246.86

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Solution

The fourth proportional to 12,503.30, 17,226.86 and 8,246.86 is: 11,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.30 : 17,226.86 = 8,246.86 : x
  2. Step 2: Convert to fraction form
    12,503.30/17,226.86 = 8,246.86/x
  3. Step 3: Cross multiply
    12,503.30x = 17,226.86 × 8,246.86
  4. Step 4: Simplify right side
    12,503.30x = 142,067,480.21
  5. Step 5: Solve for x
    x = 142,067,480.21/12,503.30
  6. Step 6: Final answer
    x = 11,362.40

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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.