Home / 12,208.80-18,314.82-5,636.46

Finding the Fourth Proportional to 12,208.80, 18,314.82 and 5,636.46

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Solution

The fourth proportional to 12,208.80, 18,314.82 and 5,636.46 is: 8,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.80 : 18,314.82 = 5,636.46 : x
  2. Step 2: Convert to fraction form
    12,208.80/18,314.82 = 5,636.46/x
  3. Step 3: Cross multiply
    12,208.80x = 18,314.82 × 5,636.46
  4. Step 4: Simplify right side
    12,208.80x = 103,230,750.34
  5. Step 5: Solve for x
    x = 103,230,750.34/12,208.80
  6. Step 6: Final answer
    x = 8,455.44

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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.