Home / 11,986.32-16,542.18-7,273.20

Finding the Fourth Proportional to 11,986.32, 16,542.18 and 7,273.20

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Solution

The fourth proportional to 11,986.32, 16,542.18 and 7,273.20 is: 10,037.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.32 : 16,542.18 = 7,273.20 : x
  2. Step 2: Convert to fraction form
    11,986.32/16,542.18 = 7,273.20/x
  3. Step 3: Cross multiply
    11,986.32x = 16,542.18 × 7,273.20
  4. Step 4: Simplify right side
    11,986.32x = 120,314,583.58
  5. Step 5: Solve for x
    x = 120,314,583.58/11,986.32
  6. Step 6: Final answer
    x = 10,037.66

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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.