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Finding the Fourth Proportional to 8,980.09, 13,470.12 and 2,406.11

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Solution

The fourth proportional to 8,980.09, 13,470.12 and 2,406.11 is: 3,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.09 : 13,470.12 = 2,406.11 : x
  2. Step 2: Convert to fraction form
    8,980.09/13,470.12 = 2,406.11/x
  3. Step 3: Cross multiply
    8,980.09x = 13,470.12 × 2,406.11
  4. Step 4: Simplify right side
    8,980.09x = 32,410,590.43
  5. Step 5: Solve for x
    x = 32,410,590.43/8,980.09
  6. Step 6: Final answer
    x = 3,609.16

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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.