Home / 12,493.80-18,738.54-4,702.68

Finding the Fourth Proportional to 12,493.80, 18,738.54 and 4,702.68

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Solution

The fourth proportional to 12,493.80, 18,738.54 and 4,702.68 is: 7,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.80 : 18,738.54 = 4,702.68 : x
  2. Step 2: Convert to fraction form
    12,493.80/18,738.54 = 4,702.68/x
  3. Step 3: Cross multiply
    12,493.80x = 18,738.54 × 4,702.68
  4. Step 4: Simplify right side
    12,493.80x = 88,121,357.29
  5. Step 5: Solve for x
    x = 88,121,357.29/12,493.80
  6. Step 6: Final answer
    x = 7,053.21

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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.