Home / 11,276.11-15,525.37-9,930.80

Finding the Fourth Proportional to 11,276.11, 15,525.37 and 9,930.80

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Solution

The fourth proportional to 11,276.11, 15,525.37 and 9,930.80 is: 13,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.11 : 15,525.37 = 9,930.80 : x
  2. Step 2: Convert to fraction form
    11,276.11/15,525.37 = 9,930.80/x
  3. Step 3: Cross multiply
    11,276.11x = 15,525.37 × 9,930.80
  4. Step 4: Simplify right side
    11,276.11x = 154,179,395.62
  5. Step 5: Solve for x
    x = 154,179,395.62/11,276.11
  6. Step 6: Final answer
    x = 13,673.10

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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.