Home / 12,464.12-17,174.52-8,478.32

Finding the Fourth Proportional to 12,464.12, 17,174.52 and 8,478.32

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Solution

The fourth proportional to 12,464.12, 17,174.52 and 8,478.32 is: 11,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,464.12 : 17,174.52 = 8,478.32 : x
  2. Step 2: Convert to fraction form
    12,464.12/17,174.52 = 8,478.32/x
  3. Step 3: Cross multiply
    12,464.12x = 17,174.52 × 8,478.32
  4. Step 4: Simplify right side
    12,464.12x = 145,611,076.41
  5. Step 5: Solve for x
    x = 145,611,076.41/12,464.12
  6. Step 6: Final answer
    x = 11,682.42

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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.