Home / 13,949.24-21,019.82-11,538.32

Finding the Fourth Proportional to 13,949.24, 21,019.82 and 11,538.32

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Solution

The fourth proportional to 13,949.24, 21,019.82 and 11,538.32 is: 17,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.24 : 21,019.82 = 11,538.32 : x
  2. Step 2: Convert to fraction form
    13,949.24/21,019.82 = 11,538.32/x
  3. Step 3: Cross multiply
    13,949.24x = 21,019.82 × 11,538.32
  4. Step 4: Simplify right side
    13,949.24x = 242,533,409.50
  5. Step 5: Solve for x
    x = 242,533,409.50/13,949.24
  6. Step 6: Final answer
    x = 17,386.85

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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.