Home / 8,235.12-11,366.28-5,722.48

Finding the Fourth Proportional to 8,235.12, 11,366.28 and 5,722.48

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Solution

The fourth proportional to 8,235.12, 11,366.28 and 5,722.48 is: 7,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.12 : 11,366.28 = 5,722.48 : x
  2. Step 2: Convert to fraction form
    8,235.12/11,366.28 = 5,722.48/x
  3. Step 3: Cross multiply
    8,235.12x = 11,366.28 × 5,722.48
  4. Step 4: Simplify right side
    8,235.12x = 65,043,309.97
  5. Step 5: Solve for x
    x = 65,043,309.97/8,235.12
  6. Step 6: Final answer
    x = 7,898.28

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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.