Home / 14,276.88-21,418.32-4,917.74

Finding the Fourth Proportional to 14,276.88, 21,418.32 and 4,917.74

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Solution

The fourth proportional to 14,276.88, 21,418.32 and 4,917.74 is: 7,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.88 : 21,418.32 = 4,917.74 : x
  2. Step 2: Convert to fraction form
    14,276.88/21,418.32 = 4,917.74/x
  3. Step 3: Cross multiply
    14,276.88x = 21,418.32 × 4,917.74
  4. Step 4: Simplify right side
    14,276.88x = 105,329,729.00
  5. Step 5: Solve for x
    x = 105,329,729.00/14,276.88
  6. Step 6: Final answer
    x = 7,377.64

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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.