Home / 12,484.25-18,728.15-4,047.90

Finding the Fourth Proportional to 12,484.25, 18,728.15 and 4,047.90

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Solution

The fourth proportional to 12,484.25, 18,728.15 and 4,047.90 is: 6,072.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.25 : 18,728.15 = 4,047.90 : x
  2. Step 2: Convert to fraction form
    12,484.25/18,728.15 = 4,047.90/x
  3. Step 3: Cross multiply
    12,484.25x = 18,728.15 × 4,047.90
  4. Step 4: Simplify right side
    12,484.25x = 75,809,587.91
  5. Step 5: Solve for x
    x = 75,809,587.91/12,484.25
  6. Step 6: Final answer
    x = 6,072.42

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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.