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Finding the Fourth Proportional to 8,980.37, 13,470.56 and 2,406.39

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Solution

The fourth proportional to 8,980.37, 13,470.56 and 2,406.39 is: 3,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.37 : 13,470.56 = 2,406.39 : x
  2. Step 2: Convert to fraction form
    8,980.37/13,470.56 = 2,406.39/x
  3. Step 3: Cross multiply
    8,980.37x = 13,470.56 × 2,406.39
  4. Step 4: Simplify right side
    8,980.37x = 32,415,420.88
  5. Step 5: Solve for x
    x = 32,415,420.88/8,980.37
  6. Step 6: Final answer
    x = 3,609.59

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Similar ratio
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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.