Home / 13,561.06-20,249.30-11,966.50

Finding the Fourth Proportional to 13,561.06, 20,249.30 and 11,966.50

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Solution

The fourth proportional to 13,561.06, 20,249.30 and 11,966.50 is: 17,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.06 : 20,249.30 = 11,966.50 : x
  2. Step 2: Convert to fraction form
    13,561.06/20,249.30 = 11,966.50/x
  3. Step 3: Cross multiply
    13,561.06x = 20,249.30 × 11,966.50
  4. Step 4: Simplify right side
    13,561.06x = 242,313,248.45
  5. Step 5: Solve for x
    x = 242,313,248.45/13,561.06
  6. Step 6: Final answer
    x = 17,868.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.