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Finding the Fourth Proportional to 19,848.88, 29,765.07 and 8,445.97

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Solution

The fourth proportional to 19,848.88, 29,765.07 and 8,445.97 is: 12,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,848.88 : 29,765.07 = 8,445.97 : x
  2. Step 2: Convert to fraction form
    19,848.88/29,765.07 = 8,445.97/x
  3. Step 3: Cross multiply
    19,848.88x = 29,765.07 × 8,445.97
  4. Step 4: Simplify right side
    19,848.88x = 251,394,888.27
  5. Step 5: Solve for x
    x = 251,394,888.27/19,848.88
  6. Step 6: Final answer
    x = 12,665.44

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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.