Home / 8,702.98-13,054.39-2,129.11

Finding the Fourth Proportional to 8,702.98, 13,054.39 and 2,129.11

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Solution

The fourth proportional to 8,702.98, 13,054.39 and 2,129.11 is: 3,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.98 : 13,054.39 = 2,129.11 : x
  2. Step 2: Convert to fraction form
    8,702.98/13,054.39 = 2,129.11/x
  3. Step 3: Cross multiply
    8,702.98x = 13,054.39 × 2,129.11
  4. Step 4: Simplify right side
    8,702.98x = 27,794,232.29
  5. Step 5: Solve for x
    x = 27,794,232.29/8,702.98
  6. Step 6: Final answer
    x = 3,193.65

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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.