Home / 12,657.96-18,976.66-5,267.95

Finding the Fourth Proportional to 12,657.96, 18,976.66 and 5,267.95

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Solution

The fourth proportional to 12,657.96, 18,976.66 and 5,267.95 is: 7,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.96 : 18,976.66 = 5,267.95 : x
  2. Step 2: Convert to fraction form
    12,657.96/18,976.66 = 5,267.95/x
  3. Step 3: Cross multiply
    12,657.96x = 18,976.66 × 5,267.95
  4. Step 4: Simplify right side
    12,657.96x = 99,968,035.44
  5. Step 5: Solve for x
    x = 99,968,035.44/12,657.96
  6. Step 6: Final answer
    x = 7,897.64

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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.