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Finding the Fourth Proportional to 12,676.92, 19,017.63 and 4,354.77

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Solution

The fourth proportional to 12,676.92, 19,017.63 and 4,354.77 is: 6,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.92 : 19,017.63 = 4,354.77 : x
  2. Step 2: Convert to fraction form
    12,676.92/19,017.63 = 4,354.77/x
  3. Step 3: Cross multiply
    12,676.92x = 19,017.63 × 4,354.77
  4. Step 4: Simplify right side
    12,676.92x = 82,817,404.60
  5. Step 5: Solve for x
    x = 82,817,404.60/12,676.92
  6. Step 6: Final answer
    x = 6,532.93

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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.