Home / 14,781.88-22,165.44-4,917.72

Finding the Fourth Proportional to 14,781.88, 22,165.44 and 4,917.72

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Solution

The fourth proportional to 14,781.88, 22,165.44 and 4,917.72 is: 7,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.88 : 22,165.44 = 4,917.72 : x
  2. Step 2: Convert to fraction form
    14,781.88/22,165.44 = 4,917.72/x
  3. Step 3: Cross multiply
    14,781.88x = 22,165.44 × 4,917.72
  4. Step 4: Simplify right side
    14,781.88x = 109,003,427.60
  5. Step 5: Solve for x
    x = 109,003,427.60/14,781.88
  6. Step 6: Final answer
    x = 7,374.12

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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.