Home / 14,354.62-21,528.69-5,120.62

Finding the Fourth Proportional to 14,354.62, 21,528.69 and 5,120.62

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Solution

The fourth proportional to 14,354.62, 21,528.69 and 5,120.62 is: 7,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.62 : 21,528.69 = 5,120.62 : x
  2. Step 2: Convert to fraction form
    14,354.62/21,528.69 = 5,120.62/x
  3. Step 3: Cross multiply
    14,354.62x = 21,528.69 × 5,120.62
  4. Step 4: Simplify right side
    14,354.62x = 110,240,240.59
  5. Step 5: Solve for x
    x = 110,240,240.59/14,354.62
  6. Step 6: Final answer
    x = 7,679.77

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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.