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Finding the Fourth Proportional to 12,648.00, 18,957.65 and 7,706.75

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Solution

The fourth proportional to 12,648.00, 18,957.65 and 7,706.75 is: 11,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.00 : 18,957.65 = 7,706.75 : x
  2. Step 2: Convert to fraction form
    12,648.00/18,957.65 = 7,706.75/x
  3. Step 3: Cross multiply
    12,648.00x = 18,957.65 × 7,706.75
  4. Step 4: Simplify right side
    12,648.00x = 146,101,735.82
  5. Step 5: Solve for x
    x = 146,101,735.82/12,648.00
  6. Step 6: Final answer
    x = 11,551.37

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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.