Home / 14,490.66-21,755.43-8,578.47

Finding the Fourth Proportional to 14,490.66, 21,755.43 and 8,578.47

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Solution

The fourth proportional to 14,490.66, 21,755.43 and 8,578.47 is: 12,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.66 : 21,755.43 = 8,578.47 : x
  2. Step 2: Convert to fraction form
    14,490.66/21,755.43 = 8,578.47/x
  3. Step 3: Cross multiply
    14,490.66x = 21,755.43 × 8,578.47
  4. Step 4: Simplify right side
    14,490.66x = 186,628,303.59
  5. Step 5: Solve for x
    x = 186,628,303.59/14,490.66
  6. Step 6: Final answer
    x = 12,879.21

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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.