Home / 12,294.45-18,438.93-3,530.07

Finding the Fourth Proportional to 12,294.45, 18,438.93 and 3,530.07

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Solution

The fourth proportional to 12,294.45, 18,438.93 and 3,530.07 is: 5,294.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,294.45 : 18,438.93 = 3,530.07 : x
  2. Step 2: Convert to fraction form
    12,294.45/18,438.93 = 3,530.07/x
  3. Step 3: Cross multiply
    12,294.45x = 18,438.93 × 3,530.07
  4. Step 4: Simplify right side
    12,294.45x = 65,090,713.63
  5. Step 5: Solve for x
    x = 65,090,713.63/12,294.45
  6. Step 6: Final answer
    x = 5,294.32

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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.