Home / 9,660.20-13,329.32-5,682.10

Finding the Fourth Proportional to 9,660.20, 13,329.32 and 5,682.10

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Solution

The fourth proportional to 9,660.20, 13,329.32 and 5,682.10 is: 7,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.20 : 13,329.32 = 5,682.10 : x
  2. Step 2: Convert to fraction form
    9,660.20/13,329.32 = 5,682.10/x
  3. Step 3: Cross multiply
    9,660.20x = 13,329.32 × 5,682.10
  4. Step 4: Simplify right side
    9,660.20x = 75,738,529.17
  5. Step 5: Solve for x
    x = 75,738,529.17/9,660.20
  6. Step 6: Final answer
    x = 7,840.27

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Half scale
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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.