Home / 11,239.87-15,511-6,204.09

Finding the Fourth Proportional to 11,239.87, 15,511 and 6,204.09

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Solution

The fourth proportional to 11,239.87, 15,511 and 6,204.09 is: 8,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.87 : 15,511 = 6,204.09 : x
  2. Step 2: Convert to fraction form
    11,239.87/15,511 = 6,204.09/x
  3. Step 3: Cross multiply
    11,239.87x = 15,511 × 6,204.09
  4. Step 4: Simplify right side
    11,239.87x = 96,231,639.99
  5. Step 5: Solve for x
    x = 96,231,639.99/11,239.87
  6. Step 6: Final answer
    x = 8,561.63

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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.