Home / 18,829.80-25,985.94-11,274.69

Finding the Fourth Proportional to 18,829.80, 25,985.94 and 11,274.69

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Solution

The fourth proportional to 18,829.80, 25,985.94 and 11,274.69 is: 15,559.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.80 : 25,985.94 = 11,274.69 : x
  2. Step 2: Convert to fraction form
    18,829.80/25,985.94 = 11,274.69/x
  3. Step 3: Cross multiply
    18,829.80x = 25,985.94 × 11,274.69
  4. Step 4: Simplify right side
    18,829.80x = 292,983,342.71
  5. Step 5: Solve for x
    x = 292,983,342.71/18,829.80
  6. Step 6: Final answer
    x = 15,559.56

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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.