Home / 11,229.90-16,848.84-4,989.36

Finding the Fourth Proportional to 11,229.90, 16,848.84 and 4,989.36

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Solution

The fourth proportional to 11,229.90, 16,848.84 and 4,989.36 is: 7,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.90 : 16,848.84 = 4,989.36 : x
  2. Step 2: Convert to fraction form
    11,229.90/16,848.84 = 4,989.36/x
  3. Step 3: Cross multiply
    11,229.90x = 16,848.84 × 4,989.36
  4. Step 4: Simplify right side
    11,229.90x = 84,064,928.34
  5. Step 5: Solve for x
    x = 84,064,928.34/11,229.90
  6. Step 6: Final answer
    x = 7,485.81

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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.