Home / 11,328.93-16,991.64-5,786.37

Finding the Fourth Proportional to 11,328.93, 16,991.64 and 5,786.37

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Solution

The fourth proportional to 11,328.93, 16,991.64 and 5,786.37 is: 8,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.93 : 16,991.64 = 5,786.37 : x
  2. Step 2: Convert to fraction form
    11,328.93/16,991.64 = 5,786.37/x
  3. Step 3: Cross multiply
    11,328.93x = 16,991.64 × 5,786.37
  4. Step 4: Simplify right side
    11,328.93x = 98,319,915.95
  5. Step 5: Solve for x
    x = 98,319,915.95/11,328.93
  6. Step 6: Final answer
    x = 8,678.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.