Home / 12,664.93-17,477.09-6,999.62

Finding the Fourth Proportional to 12,664.93, 17,477.09 and 6,999.62

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Solution

The fourth proportional to 12,664.93, 17,477.09 and 6,999.62 is: 9,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.93 : 17,477.09 = 6,999.62 : x
  2. Step 2: Convert to fraction form
    12,664.93/17,477.09 = 6,999.62/x
  3. Step 3: Cross multiply
    12,664.93x = 17,477.09 × 6,999.62
  4. Step 4: Simplify right side
    12,664.93x = 122,332,912.26
  5. Step 5: Solve for x
    x = 122,332,912.26/12,664.93
  6. Step 6: Final answer
    x = 9,659.18

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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.