Home / 14,189.85-21,285-4,702.19

Finding the Fourth Proportional to 14,189.85, 21,285 and 4,702.19

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Solution

The fourth proportional to 14,189.85, 21,285 and 4,702.19 is: 7,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.85 : 21,285 = 4,702.19 : x
  2. Step 2: Convert to fraction form
    14,189.85/21,285 = 4,702.19/x
  3. Step 3: Cross multiply
    14,189.85x = 21,285 × 4,702.19
  4. Step 4: Simplify right side
    14,189.85x = 100,086,007.73
  5. Step 5: Solve for x
    x = 100,086,007.73/14,189.85
  6. Step 6: Final answer
    x = 7,053.35

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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.