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Finding the Fourth Proportional to 12,499.77, 17,249.45 and 6,910.77

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Solution

The fourth proportional to 12,499.77, 17,249.45 and 6,910.77 is: 9,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,499.77 : 17,249.45 = 6,910.77 : x
  2. Step 2: Convert to fraction form
    12,499.77/17,249.45 = 6,910.77/x
  3. Step 3: Cross multiply
    12,499.77x = 17,249.45 × 6,910.77
  4. Step 4: Simplify right side
    12,499.77x = 119,206,947.02
  5. Step 5: Solve for x
    x = 119,206,947.02/12,499.77
  6. Step 6: Final answer
    x = 9,536.73

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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.