Home / 11,977.89-16,528.77-6,671.76

Finding the Fourth Proportional to 11,977.89, 16,528.77 and 6,671.76

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Solution

The fourth proportional to 11,977.89, 16,528.77 and 6,671.76 is: 9,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.89 : 16,528.77 = 6,671.76 : x
  2. Step 2: Convert to fraction form
    11,977.89/16,528.77 = 6,671.76/x
  3. Step 3: Cross multiply
    11,977.89x = 16,528.77 × 6,671.76
  4. Step 4: Simplify right side
    11,977.89x = 110,275,986.54
  5. Step 5: Solve for x
    x = 110,275,986.54/11,977.89
  6. Step 6: Final answer
    x = 9,206.63

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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.