Home / 11,114.41-16,676.28-4,871.20

Finding the Fourth Proportional to 11,114.41, 16,676.28 and 4,871.20

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Solution

The fourth proportional to 11,114.41, 16,676.28 and 4,871.20 is: 7,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.41 : 16,676.28 = 4,871.20 : x
  2. Step 2: Convert to fraction form
    11,114.41/16,676.28 = 4,871.20/x
  3. Step 3: Cross multiply
    11,114.41x = 16,676.28 × 4,871.20
  4. Step 4: Simplify right side
    11,114.41x = 81,233,495.14
  5. Step 5: Solve for x
    x = 81,233,495.14/11,114.41
  6. Step 6: Final answer
    x = 7,308.84

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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.