Home / 12,329.78-17,000.26-8,556.19

Finding the Fourth Proportional to 12,329.78, 17,000.26 and 8,556.19

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Solution

The fourth proportional to 12,329.78, 17,000.26 and 8,556.19 is: 11,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.78 : 17,000.26 = 8,556.19 : x
  2. Step 2: Convert to fraction form
    12,329.78/17,000.26 = 8,556.19/x
  3. Step 3: Cross multiply
    12,329.78x = 17,000.26 × 8,556.19
  4. Step 4: Simplify right side
    12,329.78x = 145,457,390.72
  5. Step 5: Solve for x
    x = 145,457,390.72/12,329.78
  6. Step 6: Final answer
    x = 11,797.25

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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.