Home / 13,540.11-18,643.82-11,852.07

Finding the Fourth Proportional to 13,540.11, 18,643.82 and 11,852.07

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Solution

The fourth proportional to 13,540.11, 18,643.82 and 11,852.07 is: 16,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.11 : 18,643.82 = 11,852.07 : x
  2. Step 2: Convert to fraction form
    13,540.11/18,643.82 = 11,852.07/x
  3. Step 3: Cross multiply
    13,540.11x = 18,643.82 × 11,852.07
  4. Step 4: Simplify right side
    13,540.11x = 220,967,800.45
  5. Step 5: Solve for x
    x = 220,967,800.45/13,540.11
  6. Step 6: Final answer
    x = 16,319.50

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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.