Home / 11,175.20-15,419.64-7,195.52

Finding the Fourth Proportional to 11,175.20, 15,419.64 and 7,195.52

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Solution

The fourth proportional to 11,175.20, 15,419.64 and 7,195.52 is: 9,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.20 : 15,419.64 = 7,195.52 : x
  2. Step 2: Convert to fraction form
    11,175.20/15,419.64 = 7,195.52/x
  3. Step 3: Cross multiply
    11,175.20x = 15,419.64 × 7,195.52
  4. Step 4: Simplify right side
    11,175.20x = 110,952,328.01
  5. Step 5: Solve for x
    x = 110,952,328.01/11,175.20
  6. Step 6: Final answer
    x = 9,928.44

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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.