Home / 14,343.05-21,511.32-5,455.21

Finding the Fourth Proportional to 14,343.05, 21,511.32 and 5,455.21

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Solution

The fourth proportional to 14,343.05, 21,511.32 and 5,455.21 is: 8,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.05 : 21,511.32 = 5,455.21 : x
  2. Step 2: Convert to fraction form
    14,343.05/21,511.32 = 5,455.21/x
  3. Step 3: Cross multiply
    14,343.05x = 21,511.32 × 5,455.21
  4. Step 4: Simplify right side
    14,343.05x = 117,348,767.98
  5. Step 5: Solve for x
    x = 117,348,767.98/14,343.05
  6. Step 6: Final answer
    x = 8,181.58

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1.5x scale

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.