Home / 12,664.86-17,477.22-6,999.36

Finding the Fourth Proportional to 12,664.86, 17,477.22 and 6,999.36

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Solution

The fourth proportional to 12,664.86, 17,477.22 and 6,999.36 is: 9,658.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.86 : 17,477.22 = 6,999.36 : x
  2. Step 2: Convert to fraction form
    12,664.86/17,477.22 = 6,999.36/x
  3. Step 3: Cross multiply
    12,664.86x = 17,477.22 × 6,999.36
  4. Step 4: Simplify right side
    12,664.86x = 122,329,354.58
  5. Step 5: Solve for x
    x = 122,329,354.58/12,664.86
  6. Step 6: Final answer
    x = 9,658.96

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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.