Home / 11,977.28-16,529.52-6,942.80

Finding the Fourth Proportional to 11,977.28, 16,529.52 and 6,942.80

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Solution

The fourth proportional to 11,977.28, 16,529.52 and 6,942.80 is: 9,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.28 : 16,529.52 = 6,942.80 : x
  2. Step 2: Convert to fraction form
    11,977.28/16,529.52 = 6,942.80/x
  3. Step 3: Cross multiply
    11,977.28x = 16,529.52 × 6,942.80
  4. Step 4: Simplify right side
    11,977.28x = 114,761,151.46
  5. Step 5: Solve for x
    x = 114,761,151.46/11,977.28
  6. Step 6: Final answer
    x = 9,581.57

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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.