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Finding the Fourth Proportional to 11,266.98, 16,885.68 and 8,291.49

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Solution

The fourth proportional to 11,266.98, 16,885.68 and 8,291.49 is: 12,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,266.98 : 16,885.68 = 8,291.49 : x
  2. Step 2: Convert to fraction form
    11,266.98/16,885.68 = 8,291.49/x
  3. Step 3: Cross multiply
    11,266.98x = 16,885.68 × 8,291.49
  4. Step 4: Simplify right side
    11,266.98x = 140,007,494.07
  5. Step 5: Solve for x
    x = 140,007,494.07/11,266.98
  6. Step 6: Final answer
    x = 12,426.35

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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.