Home / 13,208.05-18,227.02-7,240.09

Finding the Fourth Proportional to 13,208.05, 18,227.02 and 7,240.09

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Solution

The fourth proportional to 13,208.05, 18,227.02 and 7,240.09 is: 9,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.05 : 18,227.02 = 7,240.09 : x
  2. Step 2: Convert to fraction form
    13,208.05/18,227.02 = 7,240.09/x
  3. Step 3: Cross multiply
    13,208.05x = 18,227.02 × 7,240.09
  4. Step 4: Simplify right side
    13,208.05x = 131,965,265.23
  5. Step 5: Solve for x
    x = 131,965,265.23/13,208.05
  6. Step 6: Final answer
    x = 9,991.28

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1.5x scale

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.