Home / 13,265.84-18,304.80-8,556.50

Finding the Fourth Proportional to 13,265.84, 18,304.80 and 8,556.50

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Solution

The fourth proportional to 13,265.84, 18,304.80 and 8,556.50 is: 11,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.84 : 18,304.80 = 8,556.50 : x
  2. Step 2: Convert to fraction form
    13,265.84/18,304.80 = 8,556.50/x
  3. Step 3: Cross multiply
    13,265.84x = 18,304.80 × 8,556.50
  4. Step 4: Simplify right side
    13,265.84x = 156,625,021.20
  5. Step 5: Solve for x
    x = 156,625,021.20/13,265.84
  6. Step 6: Final answer
    x = 11,806.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.