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Finding the Fourth Proportional to 13,762.77, 18,850.31 and 12,954.87

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Solution

The fourth proportional to 13,762.77, 18,850.31 and 12,954.87 is: 17,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.77 : 18,850.31 = 12,954.87 : x
  2. Step 2: Convert to fraction form
    13,762.77/18,850.31 = 12,954.87/x
  3. Step 3: Cross multiply
    13,762.77x = 18,850.31 × 12,954.87
  4. Step 4: Simplify right side
    13,762.77x = 244,203,315.51
  5. Step 5: Solve for x
    x = 244,203,315.51/13,762.77
  6. Step 6: Final answer
    x = 17,743.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.