Home / 11,206.08-15,469.17-7,977.96

Finding the Fourth Proportional to 11,206.08, 15,469.17 and 7,977.96

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Solution

The fourth proportional to 11,206.08, 15,469.17 and 7,977.96 is: 11,012.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.08 : 15,469.17 = 7,977.96 : x
  2. Step 2: Convert to fraction form
    11,206.08/15,469.17 = 7,977.96/x
  3. Step 3: Cross multiply
    11,206.08x = 15,469.17 × 7,977.96
  4. Step 4: Simplify right side
    11,206.08x = 123,412,419.49
  5. Step 5: Solve for x
    x = 123,412,419.49/11,206.08
  6. Step 6: Final answer
    x = 11,012.99

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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.