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Finding the Fourth Proportional to 12,001.01, 18,006.71 and 6,447.87

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Solution

The fourth proportional to 12,001.01, 18,006.71 and 6,447.87 is: 9,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.01 : 18,006.71 = 6,447.87 : x
  2. Step 2: Convert to fraction form
    12,001.01/18,006.71 = 6,447.87/x
  3. Step 3: Cross multiply
    12,001.01x = 18,006.71 × 6,447.87
  4. Step 4: Simplify right side
    12,001.01x = 116,104,892.97
  5. Step 5: Solve for x
    x = 116,104,892.97/12,001.01
  6. Step 6: Final answer
    x = 9,674.60

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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.