Home / 12,218.23-18,308.89-9,083.53

Finding the Fourth Proportional to 12,218.23, 18,308.89 and 9,083.53

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Solution

The fourth proportional to 12,218.23, 18,308.89 and 9,083.53 is: 13,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.23 : 18,308.89 = 9,083.53 : x
  2. Step 2: Convert to fraction form
    12,218.23/18,308.89 = 9,083.53/x
  3. Step 3: Cross multiply
    12,218.23x = 18,308.89 × 9,083.53
  4. Step 4: Simplify right side
    12,218.23x = 166,309,283.10
  5. Step 5: Solve for x
    x = 166,309,283.10/12,218.23
  6. Step 6: Final answer
    x = 13,611.57

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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.