Home / 8,702.85-13,054.26-3,156.18

Finding the Fourth Proportional to 8,702.85, 13,054.26 and 3,156.18

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Solution

The fourth proportional to 8,702.85, 13,054.26 and 3,156.18 is: 4,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.85 : 13,054.26 = 3,156.18 : x
  2. Step 2: Convert to fraction form
    8,702.85/13,054.26 = 3,156.18/x
  3. Step 3: Cross multiply
    8,702.85x = 13,054.26 × 3,156.18
  4. Step 4: Simplify right side
    8,702.85x = 41,201,530.58
  5. Step 5: Solve for x
    x = 41,201,530.58/8,702.85
  6. Step 6: Final answer
    x = 4,734.26

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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.