Home / 13,343.66-18,356.62-11,537.66

Finding the Fourth Proportional to 13,343.66, 18,356.62 and 11,537.66

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Solution

The fourth proportional to 13,343.66, 18,356.62 and 11,537.66 is: 15,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.66 : 18,356.62 = 11,537.66 : x
  2. Step 2: Convert to fraction form
    13,343.66/18,356.62 = 11,537.66/x
  3. Step 3: Cross multiply
    13,343.66x = 18,356.62 × 11,537.66
  4. Step 4: Simplify right side
    13,343.66x = 211,792,440.31
  5. Step 5: Solve for x
    x = 211,792,440.31/13,343.66
  6. Step 6: Final answer
    x = 15,872.14

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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.