Home / 11,727.48-16,183.08-6,421.44

Finding the Fourth Proportional to 11,727.48, 16,183.08 and 6,421.44

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Solution

The fourth proportional to 11,727.48, 16,183.08 and 6,421.44 is: 8,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.48 : 16,183.08 = 6,421.44 : x
  2. Step 2: Convert to fraction form
    11,727.48/16,183.08 = 6,421.44/x
  3. Step 3: Cross multiply
    11,727.48x = 16,183.08 × 6,421.44
  4. Step 4: Simplify right side
    11,727.48x = 103,918,677.24
  5. Step 5: Solve for x
    x = 103,918,677.24/11,727.48
  6. Step 6: Final answer
    x = 8,861.13

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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.