Home / 11,195.72-15,449.36-6,415.10

Finding the Fourth Proportional to 11,195.72, 15,449.36 and 6,415.10

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Solution

The fourth proportional to 11,195.72, 15,449.36 and 6,415.10 is: 8,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.72 : 15,449.36 = 6,415.10 : x
  2. Step 2: Convert to fraction form
    11,195.72/15,449.36 = 6,415.10/x
  3. Step 3: Cross multiply
    11,195.72x = 15,449.36 × 6,415.10
  4. Step 4: Simplify right side
    11,195.72x = 99,109,080.01
  5. Step 5: Solve for x
    x = 99,109,080.01/11,195.72
  6. Step 6: Final answer
    x = 8,852.41

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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.