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Finding the Fourth Proportional to 19,993.08, 30,009.04 and 9,612.12

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Solution

The fourth proportional to 19,993.08, 30,009.04 and 9,612.12 is: 14,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.08 : 30,009.04 = 9,612.12 : x
  2. Step 2: Convert to fraction form
    19,993.08/30,009.04 = 9,612.12/x
  3. Step 3: Cross multiply
    19,993.08x = 30,009.04 × 9,612.12
  4. Step 4: Simplify right side
    19,993.08x = 288,450,493.56
  5. Step 5: Solve for x
    x = 288,450,493.56/19,993.08
  6. Step 6: Final answer
    x = 14,427.52

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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.