Home / 11,142.35-16,702.27-6,985.28

Finding the Fourth Proportional to 11,142.35, 16,702.27 and 6,985.28

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Solution

The fourth proportional to 11,142.35, 16,702.27 and 6,985.28 is: 10,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.35 : 16,702.27 = 6,985.28 : x
  2. Step 2: Convert to fraction form
    11,142.35/16,702.27 = 6,985.28/x
  3. Step 3: Cross multiply
    11,142.35x = 16,702.27 × 6,985.28
  4. Step 4: Simplify right side
    11,142.35x = 116,669,949.07
  5. Step 5: Solve for x
    x = 116,669,949.07/11,142.35
  6. Step 6: Final answer
    x = 10,470.86

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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.