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Finding the Fourth Proportional to 12,000.98, 18,001.40 and 6,456.94

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Solution

The fourth proportional to 12,000.98, 18,001.40 and 6,456.94 is: 9,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.98 : 18,001.40 = 6,456.94 : x
  2. Step 2: Convert to fraction form
    12,000.98/18,001.40 = 6,456.94/x
  3. Step 3: Cross multiply
    12,000.98x = 18,001.40 × 6,456.94
  4. Step 4: Simplify right side
    12,000.98x = 116,233,882.43
  5. Step 5: Solve for x
    x = 116,233,882.43/12,000.98
  6. Step 6: Final answer
    x = 9,685.36

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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.