Home / 11,977.79-16,529.86-6,672.61

Finding the Fourth Proportional to 11,977.79, 16,529.86 and 6,672.61

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Solution

The fourth proportional to 11,977.79, 16,529.86 and 6,672.61 is: 9,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.79 : 16,529.86 = 6,672.61 : x
  2. Step 2: Convert to fraction form
    11,977.79/16,529.86 = 6,672.61/x
  3. Step 3: Cross multiply
    11,977.79x = 16,529.86 × 6,672.61
  4. Step 4: Simplify right side
    11,977.79x = 110,297,309.13
  5. Step 5: Solve for x
    x = 110,297,309.13/11,977.79
  6. Step 6: Final answer
    x = 9,208.49

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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.