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Finding the Fourth Proportional to 12,650.77, 18,950.77 and 11,617.35

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Solution

The fourth proportional to 12,650.77, 18,950.77 and 11,617.35 is: 17,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.77 : 18,950.77 = 11,617.35 : x
  2. Step 2: Convert to fraction form
    12,650.77/18,950.77 = 11,617.35/x
  3. Step 3: Cross multiply
    12,650.77x = 18,950.77 × 11,617.35
  4. Step 4: Simplify right side
    12,650.77x = 220,157,727.86
  5. Step 5: Solve for x
    x = 220,157,727.86/12,650.77
  6. Step 6: Final answer
    x = 17,402.71

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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.