Home / 13,947.24-21,016.80-11,536.32

Finding the Fourth Proportional to 13,947.24, 21,016.80 and 11,536.32

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Solution

The fourth proportional to 13,947.24, 21,016.80 and 11,536.32 is: 17,383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.24 : 21,016.80 = 11,536.32 : x
  2. Step 2: Convert to fraction form
    13,947.24/21,016.80 = 11,536.32/x
  3. Step 3: Cross multiply
    13,947.24x = 21,016.80 × 11,536.32
  4. Step 4: Simplify right side
    13,947.24x = 242,456,530.18
  5. Step 5: Solve for x
    x = 242,456,530.18/13,947.24
  6. Step 6: Final answer
    x = 17,383.84

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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.