Home / 9,550.12-13,185.18-7,785.88

Finding the Fourth Proportional to 9,550.12, 13,185.18 and 7,785.88

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Solution

The fourth proportional to 9,550.12, 13,185.18 and 7,785.88 is: 10,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,550.12 : 13,185.18 = 7,785.88 : x
  2. Step 2: Convert to fraction form
    9,550.12/13,185.18 = 7,785.88/x
  3. Step 3: Cross multiply
    9,550.12x = 13,185.18 × 7,785.88
  4. Step 4: Simplify right side
    9,550.12x = 102,658,229.26
  5. Step 5: Solve for x
    x = 102,658,229.26/9,550.12
  6. Step 6: Final answer
    x = 10,749.42

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Half scale
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Double 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.