Home / 11,440.69-15,786.65-6,404.37

Finding the Fourth Proportional to 11,440.69, 15,786.65 and 6,404.37

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Solution

The fourth proportional to 11,440.69, 15,786.65 and 6,404.37 is: 8,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.69 : 15,786.65 = 6,404.37 : x
  2. Step 2: Convert to fraction form
    11,440.69/15,786.65 = 6,404.37/x
  3. Step 3: Cross multiply
    11,440.69x = 15,786.65 × 6,404.37
  4. Step 4: Simplify right side
    11,440.69x = 101,103,468.45
  5. Step 5: Solve for x
    x = 101,103,468.45/11,440.69
  6. Step 6: Final answer
    x = 8,837.18

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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.