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Finding the Fourth Proportional to 14,251.82, 21,383.88 and 7,676.69

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Solution

The fourth proportional to 14,251.82, 21,383.88 and 7,676.69 is: 11,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.82 : 21,383.88 = 7,676.69 : x
  2. Step 2: Convert to fraction form
    14,251.82/21,383.88 = 7,676.69/x
  3. Step 3: Cross multiply
    14,251.82x = 21,383.88 × 7,676.69
  4. Step 4: Simplify right side
    14,251.82x = 164,157,417.76
  5. Step 5: Solve for x
    x = 164,157,417.76/14,251.82
  6. Step 6: Final answer
    x = 11,518.35

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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.