Home / 11,128.69-15,356.99-6,091.91

Finding the Fourth Proportional to 11,128.69, 15,356.99 and 6,091.91

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Solution

The fourth proportional to 11,128.69, 15,356.99 and 6,091.91 is: 8,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.69 : 15,356.99 = 6,091.91 : x
  2. Step 2: Convert to fraction form
    11,128.69/15,356.99 = 6,091.91/x
  3. Step 3: Cross multiply
    11,128.69x = 15,356.99 × 6,091.91
  4. Step 4: Simplify right side
    11,128.69x = 93,553,396.98
  5. Step 5: Solve for x
    x = 93,553,396.98/11,128.69
  6. Step 6: Final answer
    x = 8,406.50

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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.