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Finding the Fourth Proportional to 10,479, 14,461.26 and 6,286.68

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Solution

The fourth proportional to 10,479, 14,461.26 and 6,286.68 is: 8,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479 : 14,461.26 = 6,286.68 : x
  2. Step 2: Convert to fraction form
    10,479/14,461.26 = 6,286.68/x
  3. Step 3: Cross multiply
    10,479x = 14,461.26 × 6,286.68
  4. Step 4: Simplify right side
    10,479x = 90,913,314.02
  5. Step 5: Solve for x
    x = 90,913,314.02/10,479
  6. Step 6: Final answer
    x = 8,675.76

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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.