Home / 12,250.30-18,371.04-4,242.90

Finding the Fourth Proportional to 12,250.30, 18,371.04 and 4,242.90

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Solution

The fourth proportional to 12,250.30, 18,371.04 and 4,242.90 is: 6,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.30 : 18,371.04 = 4,242.90 : x
  2. Step 2: Convert to fraction form
    12,250.30/18,371.04 = 4,242.90/x
  3. Step 3: Cross multiply
    12,250.30x = 18,371.04 × 4,242.90
  4. Step 4: Simplify right side
    12,250.30x = 77,946,485.62
  5. Step 5: Solve for x
    x = 77,946,485.62/12,250.30
  6. Step 6: Final answer
    x = 6,362.82

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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.