Home / 14,542.12-21,819.66-7,615

Finding the Fourth Proportional to 14,542.12, 21,819.66 and 7,615

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Solution

The fourth proportional to 14,542.12, 21,819.66 and 7,615 is: 11,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.12 : 21,819.66 = 7,615 : x
  2. Step 2: Convert to fraction form
    14,542.12/21,819.66 = 7,615/x
  3. Step 3: Cross multiply
    14,542.12x = 21,819.66 × 7,615
  4. Step 4: Simplify right side
    14,542.12x = 166,156,710.90
  5. Step 5: Solve for x
    x = 166,156,710.90/14,542.12
  6. Step 6: Final answer
    x = 11,425.89

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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.