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Finding the Fourth Proportional to 12,029.14, 17,999.97 and 9,929.62

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Solution

The fourth proportional to 12,029.14, 17,999.97 and 9,929.62 is: 14,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,029.14 : 17,999.97 = 9,929.62 : x
  2. Step 2: Convert to fraction form
    12,029.14/17,999.97 = 9,929.62/x
  3. Step 3: Cross multiply
    12,029.14x = 17,999.97 × 9,929.62
  4. Step 4: Simplify right side
    12,029.14x = 178,732,862.11
  5. Step 5: Solve for x
    x = 178,732,862.11/12,029.14
  6. Step 6: Final answer
    x = 14,858.32

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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.