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Finding the Fourth Proportional to 14,710.82, 20,256.48 and 12,676.91

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Solution

The fourth proportional to 14,710.82, 20,256.48 and 12,676.91 is: 17,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,710.82 : 20,256.48 = 12,676.91 : x
  2. Step 2: Convert to fraction form
    14,710.82/20,256.48 = 12,676.91/x
  3. Step 3: Cross multiply
    14,710.82x = 20,256.48 × 12,676.91
  4. Step 4: Simplify right side
    14,710.82x = 256,789,472.59
  5. Step 5: Solve for x
    x = 256,789,472.59/14,710.82
  6. Step 6: Final answer
    x = 17,455.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.