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Finding the Fourth Proportional to 11,778.20, 16,254 and 6,473.10

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Solution

The fourth proportional to 11,778.20, 16,254 and 6,473.10 is: 8,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.20 : 16,254 = 6,473.10 : x
  2. Step 2: Convert to fraction form
    11,778.20/16,254 = 6,473.10/x
  3. Step 3: Cross multiply
    11,778.20x = 16,254 × 6,473.10
  4. Step 4: Simplify right side
    11,778.20x = 105,213,767.40
  5. Step 5: Solve for x
    x = 105,213,767.40/11,778.20
  6. Step 6: Final answer
    x = 8,932.93

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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.