Home / 9,195.37-12,686.19-5,609.09

Finding the Fourth Proportional to 9,195.37, 12,686.19 and 5,609.09

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Solution

The fourth proportional to 9,195.37, 12,686.19 and 5,609.09 is: 7,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.37 : 12,686.19 = 5,609.09 : x
  2. Step 2: Convert to fraction form
    9,195.37/12,686.19 = 5,609.09/x
  3. Step 3: Cross multiply
    9,195.37x = 12,686.19 × 5,609.09
  4. Step 4: Simplify right side
    9,195.37x = 71,157,981.47
  5. Step 5: Solve for x
    x = 71,157,981.47/9,195.37
  6. Step 6: Final answer
    x = 7,738.46

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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.