Home / 13,160.97-18,161.82-7,192.49

Finding the Fourth Proportional to 13,160.97, 18,161.82 and 7,192.49

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Solution

The fourth proportional to 13,160.97, 18,161.82 and 7,192.49 is: 9,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.97 : 18,161.82 = 7,192.49 : x
  2. Step 2: Convert to fraction form
    13,160.97/18,161.82 = 7,192.49/x
  3. Step 3: Cross multiply
    13,160.97x = 18,161.82 × 7,192.49
  4. Step 4: Simplify right side
    13,160.97x = 130,628,617.92
  5. Step 5: Solve for x
    x = 130,628,617.92/13,160.97
  6. Step 6: Final answer
    x = 9,925.46

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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.