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Finding the Fourth Proportional to 8,913, 13,367.78 and 2,673.80

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Solution

The fourth proportional to 8,913, 13,367.78 and 2,673.80 is: 4,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913 : 13,367.78 = 2,673.80 : x
  2. Step 2: Convert to fraction form
    8,913/13,367.78 = 2,673.80/x
  3. Step 3: Cross multiply
    8,913x = 13,367.78 × 2,673.80
  4. Step 4: Simplify right side
    8,913x = 35,742,770.16
  5. Step 5: Solve for x
    x = 35,742,770.16/8,913
  6. Step 6: Final answer
    x = 4,010.18

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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.