Home / 11,689.44-16,131.66-6,384.30

Finding the Fourth Proportional to 11,689.44, 16,131.66 and 6,384.30

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Solution

The fourth proportional to 11,689.44, 16,131.66 and 6,384.30 is: 8,810.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.44 : 16,131.66 = 6,384.30 : x
  2. Step 2: Convert to fraction form
    11,689.44/16,131.66 = 6,384.30/x
  3. Step 3: Cross multiply
    11,689.44x = 16,131.66 × 6,384.30
  4. Step 4: Simplify right side
    11,689.44x = 102,989,356.94
  5. Step 5: Solve for x
    x = 102,989,356.94/11,689.44
  6. Step 6: Final answer
    x = 8,810.46

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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.