Home / 12,664.83-17,477.41-6,999.42

Finding the Fourth Proportional to 12,664.83, 17,477.41 and 6,999.42

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Solution

The fourth proportional to 12,664.83, 17,477.41 and 6,999.42 is: 9,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.83 : 17,477.41 = 6,999.42 : x
  2. Step 2: Convert to fraction form
    12,664.83/17,477.41 = 6,999.42/x
  3. Step 3: Cross multiply
    12,664.83x = 17,477.41 × 6,999.42
  4. Step 4: Simplify right side
    12,664.83x = 122,331,733.10
  5. Step 5: Solve for x
    x = 122,331,733.10/12,664.83
  6. Step 6: Final answer
    x = 9,659.17

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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.