Home / 11,021.77-15,209.25-6,240.34

Finding the Fourth Proportional to 11,021.77, 15,209.25 and 6,240.34

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Solution

The fourth proportional to 11,021.77, 15,209.25 and 6,240.34 is: 8,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.77 : 15,209.25 = 6,240.34 : x
  2. Step 2: Convert to fraction form
    11,021.77/15,209.25 = 6,240.34/x
  3. Step 3: Cross multiply
    11,021.77x = 15,209.25 × 6,240.34
  4. Step 4: Simplify right side
    11,021.77x = 94,910,815.10
  5. Step 5: Solve for x
    x = 94,910,815.10/11,021.77
  6. Step 6: Final answer
    x = 8,611.22

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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.