Home / 12,665.09-17,477.48-6,999.44

Finding the Fourth Proportional to 12,665.09, 17,477.48 and 6,999.44

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Solution

The fourth proportional to 12,665.09, 17,477.48 and 6,999.44 is: 9,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.09 : 17,477.48 = 6,999.44 : x
  2. Step 2: Convert to fraction form
    12,665.09/17,477.48 = 6,999.44/x
  3. Step 3: Cross multiply
    12,665.09x = 17,477.48 × 6,999.44
  4. Step 4: Simplify right side
    12,665.09x = 122,332,502.72
  5. Step 5: Solve for x
    x = 122,332,502.72/12,665.09
  6. Step 6: Final answer
    x = 9,659.03

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Half scale
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Double scale
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Similar ratio
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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.