Home / 14,961.76-20,643.60-8,998

Finding the Fourth Proportional to 14,961.76, 20,643.60 and 8,998

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Solution

The fourth proportional to 14,961.76, 20,643.60 and 8,998 is: 12,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.76 : 20,643.60 = 8,998 : x
  2. Step 2: Convert to fraction form
    14,961.76/20,643.60 = 8,998/x
  3. Step 3: Cross multiply
    14,961.76x = 20,643.60 × 8,998
  4. Step 4: Simplify right side
    14,961.76x = 185,751,112.80
  5. Step 5: Solve for x
    x = 185,751,112.80/14,961.76
  6. Step 6: Final answer
    x = 12,415.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.