Home / 14,781.84-22,175.64-4,921.44

Finding the Fourth Proportional to 14,781.84, 22,175.64 and 4,921.44

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Solution

The fourth proportional to 14,781.84, 22,175.64 and 4,921.44 is: 7,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.84 : 22,175.64 = 4,921.44 : x
  2. Step 2: Convert to fraction form
    14,781.84/22,175.64 = 4,921.44/x
  3. Step 3: Cross multiply
    14,781.84x = 22,175.64 × 4,921.44
  4. Step 4: Simplify right side
    14,781.84x = 109,136,081.72
  5. Step 5: Solve for x
    x = 109,136,081.72/14,781.84
  6. Step 6: Final answer
    x = 7,383.12

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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.