Home / 8,702.39-13,060.50-3,157.31

Finding the Fourth Proportional to 8,702.39, 13,060.50 and 3,157.31

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Solution

The fourth proportional to 8,702.39, 13,060.50 and 3,157.31 is: 4,738.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.39 : 13,060.50 = 3,157.31 : x
  2. Step 2: Convert to fraction form
    8,702.39/13,060.50 = 3,157.31/x
  3. Step 3: Cross multiply
    8,702.39x = 13,060.50 × 3,157.31
  4. Step 4: Simplify right side
    8,702.39x = 41,236,047.26
  5. Step 5: Solve for x
    x = 41,236,047.26/8,702.39
  6. Step 6: Final answer
    x = 4,738.47

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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.