Home / 11,021.80-15,209.54-6,546.12

Finding the Fourth Proportional to 11,021.80, 15,209.54 and 6,546.12

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Solution

The fourth proportional to 11,021.80, 15,209.54 and 6,546.12 is: 9,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.80 : 15,209.54 = 6,546.12 : x
  2. Step 2: Convert to fraction form
    11,021.80/15,209.54 = 6,546.12/x
  3. Step 3: Cross multiply
    11,021.80x = 15,209.54 × 6,546.12
  4. Step 4: Simplify right side
    11,021.80x = 99,563,473.98
  5. Step 5: Solve for x
    x = 99,563,473.98/11,021.80
  6. Step 6: Final answer
    x = 9,033.32

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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.