Home / 12,532.74-18,802.80-3,769

Finding the Fourth Proportional to 12,532.74, 18,802.80 and 3,769

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Solution

The fourth proportional to 12,532.74, 18,802.80 and 3,769 is: 5,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.74 : 18,802.80 = 3,769 : x
  2. Step 2: Convert to fraction form
    12,532.74/18,802.80 = 3,769/x
  3. Step 3: Cross multiply
    12,532.74x = 18,802.80 × 3,769
  4. Step 4: Simplify right side
    12,532.74x = 70,867,753.20
  5. Step 5: Solve for x
    x = 70,867,753.20/12,532.74
  6. Step 6: Final answer
    x = 5,654.61

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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.