Home / 13,265.78-18,297.36-11,262.47

Finding the Fourth Proportional to 13,265.78, 18,297.36 and 11,262.47

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Solution

The fourth proportional to 13,265.78, 18,297.36 and 11,262.47 is: 15,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.78 : 18,297.36 = 11,262.47 : x
  2. Step 2: Convert to fraction form
    13,265.78/18,297.36 = 11,262.47/x
  3. Step 3: Cross multiply
    13,265.78x = 18,297.36 × 11,262.47
  4. Step 4: Simplify right side
    13,265.78x = 206,073,376.59
  5. Step 5: Solve for x
    x = 206,073,376.59/13,265.78
  6. Step 6: Final answer
    x = 15,534.21

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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.