Home / 12,649.08-18,963.87-4,751.42

Finding the Fourth Proportional to 12,649.08, 18,963.87 and 4,751.42

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Solution

The fourth proportional to 12,649.08, 18,963.87 and 4,751.42 is: 7,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.08 : 18,963.87 = 4,751.42 : x
  2. Step 2: Convert to fraction form
    12,649.08/18,963.87 = 4,751.42/x
  3. Step 3: Cross multiply
    12,649.08x = 18,963.87 × 4,751.42
  4. Step 4: Simplify right side
    12,649.08x = 90,105,311.20
  5. Step 5: Solve for x
    x = 90,105,311.20/12,649.08
  6. Step 6: Final answer
    x = 7,123.47

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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.