Home / 12,649.03-18,968.28-4,327.36

Finding the Fourth Proportional to 12,649.03, 18,968.28 and 4,327.36

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Solution

The fourth proportional to 12,649.03, 18,968.28 and 4,327.36 is: 6,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.03 : 18,968.28 = 4,327.36 : x
  2. Step 2: Convert to fraction form
    12,649.03/18,968.28 = 4,327.36/x
  3. Step 3: Cross multiply
    12,649.03x = 18,968.28 × 4,327.36
  4. Step 4: Simplify right side
    12,649.03x = 82,082,576.14
  5. Step 5: Solve for x
    x = 82,082,576.14/12,649.03
  6. Step 6: Final answer
    x = 6,489.24

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1.5x scale

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.