Home / 10,980.64-16,470.92-3,189.44

Finding the Fourth Proportional to 10,980.64, 16,470.92 and 3,189.44

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Solution

The fourth proportional to 10,980.64, 16,470.92 and 3,189.44 is: 4,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.64 : 16,470.92 = 3,189.44 : x
  2. Step 2: Convert to fraction form
    10,980.64/16,470.92 = 3,189.44/x
  3. Step 3: Cross multiply
    10,980.64x = 16,470.92 × 3,189.44
  4. Step 4: Simplify right side
    10,980.64x = 52,533,011.08
  5. Step 5: Solve for x
    x = 52,533,011.08/10,980.64
  6. Step 6: Final answer
    x = 4,784.15

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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.