Home / 11,749.14-16,219.20-7,550.10

Finding the Fourth Proportional to 11,749.14, 16,219.20 and 7,550.10

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Solution

The fourth proportional to 11,749.14, 16,219.20 and 7,550.10 is: 10,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.14 : 16,219.20 = 7,550.10 : x
  2. Step 2: Convert to fraction form
    11,749.14/16,219.20 = 7,550.10/x
  3. Step 3: Cross multiply
    11,749.14x = 16,219.20 × 7,550.10
  4. Step 4: Simplify right side
    11,749.14x = 122,456,581.92
  5. Step 5: Solve for x
    x = 122,456,581.92/11,749.14
  6. Step 6: Final answer
    x = 10,422.60

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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.