Home / 12,470.85-18,712.34-5,080.41

Finding the Fourth Proportional to 12,470.85, 18,712.34 and 5,080.41

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Solution

The fourth proportional to 12,470.85, 18,712.34 and 5,080.41 is: 7,623.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.85 : 18,712.34 = 5,080.41 : x
  2. Step 2: Convert to fraction form
    12,470.85/18,712.34 = 5,080.41/x
  3. Step 3: Cross multiply
    12,470.85x = 18,712.34 × 5,080.41
  4. Step 4: Simplify right side
    12,470.85x = 95,066,359.26
  5. Step 5: Solve for x
    x = 95,066,359.26/12,470.85
  6. Step 6: Final answer
    x = 7,623.09

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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.