Home / 13,741.58-18,963.39-7,773.12

Finding the Fourth Proportional to 13,741.58, 18,963.39 and 7,773.12

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Solution

The fourth proportional to 13,741.58, 18,963.39 and 7,773.12 is: 10,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.58 : 18,963.39 = 7,773.12 : x
  2. Step 2: Convert to fraction form
    13,741.58/18,963.39 = 7,773.12/x
  3. Step 3: Cross multiply
    13,741.58x = 18,963.39 × 7,773.12
  4. Step 4: Simplify right side
    13,741.58x = 147,404,777.19
  5. Step 5: Solve for x
    x = 147,404,777.19/13,741.58
  6. Step 6: Final answer
    x = 10,726.91

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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.