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Finding the Fourth Proportional to 11,274.56, 16,904.68 and 9,890.68

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Solution

The fourth proportional to 11,274.56, 16,904.68 and 9,890.68 is: 14,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.56 : 16,904.68 = 9,890.68 : x
  2. Step 2: Convert to fraction form
    11,274.56/16,904.68 = 9,890.68/x
  3. Step 3: Cross multiply
    11,274.56x = 16,904.68 × 9,890.68
  4. Step 4: Simplify right side
    11,274.56x = 167,198,780.38
  5. Step 5: Solve for x
    x = 167,198,780.38/11,274.56
  6. Step 6: Final answer
    x = 14,829.74

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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.