Home / 11,321.61-16,985.08-11,133.34

Finding the Fourth Proportional to 11,321.61, 16,985.08 and 11,133.34

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Solution

The fourth proportional to 11,321.61, 16,985.08 and 11,133.34 is: 16,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.61 : 16,985.08 = 11,133.34 : x
  2. Step 2: Convert to fraction form
    11,321.61/16,985.08 = 11,133.34/x
  3. Step 3: Cross multiply
    11,321.61x = 16,985.08 × 11,133.34
  4. Step 4: Simplify right side
    11,321.61x = 189,100,649.45
  5. Step 5: Solve for x
    x = 189,100,649.45/11,321.61
  6. Step 6: Final answer
    x = 16,702.63

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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.