Home / 12,266.35-18,388.59-10,203.28

Finding the Fourth Proportional to 12,266.35, 18,388.59 and 10,203.28

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Solution

The fourth proportional to 12,266.35, 18,388.59 and 10,203.28 is: 15,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.35 : 18,388.59 = 10,203.28 : x
  2. Step 2: Convert to fraction form
    12,266.35/18,388.59 = 10,203.28/x
  3. Step 3: Cross multiply
    12,266.35x = 18,388.59 × 10,203.28
  4. Step 4: Simplify right side
    12,266.35x = 187,623,932.58
  5. Step 5: Solve for x
    x = 187,623,932.58/12,266.35
  6. Step 6: Final answer
    x = 15,295.82

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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.