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Finding the Fourth Proportional to 9,999.10, 14,992.71 and 3,425.14

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Solution

The fourth proportional to 9,999.10, 14,992.71 and 3,425.14 is: 5,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.10 : 14,992.71 = 3,425.14 : x
  2. Step 2: Convert to fraction form
    9,999.10/14,992.71 = 3,425.14/x
  3. Step 3: Cross multiply
    9,999.10x = 14,992.71 × 3,425.14
  4. Step 4: Simplify right side
    9,999.10x = 51,352,130.73
  5. Step 5: Solve for x
    x = 51,352,130.73/9,999.10
  6. Step 6: Final answer
    x = 5,135.68

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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.