Home / 12,456.88-18,672.36-4,662.32

Finding the Fourth Proportional to 12,456.88, 18,672.36 and 4,662.32

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Solution

The fourth proportional to 12,456.88, 18,672.36 and 4,662.32 is: 6,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.88 : 18,672.36 = 4,662.32 : x
  2. Step 2: Convert to fraction form
    12,456.88/18,672.36 = 4,662.32/x
  3. Step 3: Cross multiply
    12,456.88x = 18,672.36 × 4,662.32
  4. Step 4: Simplify right side
    12,456.88x = 87,056,517.48
  5. Step 5: Solve for x
    x = 87,056,517.48/12,456.88
  6. Step 6: Final answer
    x = 6,988.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.