Home / 12,294.48-18,438.84-3,530.64

Finding the Fourth Proportional to 12,294.48, 18,438.84 and 3,530.64

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Solution

The fourth proportional to 12,294.48, 18,438.84 and 3,530.64 is: 5,295.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294.48 : 18,438.84 = 3,530.64 : x
  2. Step 2: Convert to fraction form
    12,294.48/18,438.84 = 3,530.64/x
  3. Step 3: Cross multiply
    12,294.48x = 18,438.84 × 3,530.64
  4. Step 4: Simplify right side
    12,294.48x = 65,100,906.06
  5. Step 5: Solve for x
    x = 65,100,906.06/12,294.48
  6. Step 6: Final answer
    x = 5,295.13

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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.