Home / 13,261.44-19,971.12-11,550.72

Finding the Fourth Proportional to 13,261.44, 19,971.12 and 11,550.72

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Solution

The fourth proportional to 13,261.44, 19,971.12 and 11,550.72 is: 17,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.44 : 19,971.12 = 11,550.72 : x
  2. Step 2: Convert to fraction form
    13,261.44/19,971.12 = 11,550.72/x
  3. Step 3: Cross multiply
    13,261.44x = 19,971.12 × 11,550.72
  4. Step 4: Simplify right side
    13,261.44x = 230,680,815.21
  5. Step 5: Solve for x
    x = 230,680,815.21/13,261.44
  6. Step 6: Final answer
    x = 17,394.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.