Home / 13,650.28-18,837.64-7,985.52

Finding the Fourth Proportional to 13,650.28, 18,837.64 and 7,985.52

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Solution

The fourth proportional to 13,650.28, 18,837.64 and 7,985.52 is: 11,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.28 : 18,837.64 = 7,985.52 : x
  2. Step 2: Convert to fraction form
    13,650.28/18,837.64 = 7,985.52/x
  3. Step 3: Cross multiply
    13,650.28x = 18,837.64 × 7,985.52
  4. Step 4: Simplify right side
    13,650.28x = 150,428,350.97
  5. Step 5: Solve for x
    x = 150,428,350.97/13,650.28
  6. Step 6: Final answer
    x = 11,020.17

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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.