Home / 11,621.85-16,038.26-6,316.66

Finding the Fourth Proportional to 11,621.85, 16,038.26 and 6,316.66

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Solution

The fourth proportional to 11,621.85, 16,038.26 and 6,316.66 is: 8,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.85 : 16,038.26 = 6,316.66 : x
  2. Step 2: Convert to fraction form
    11,621.85/16,038.26 = 6,316.66/x
  3. Step 3: Cross multiply
    11,621.85x = 16,038.26 × 6,316.66
  4. Step 4: Simplify right side
    11,621.85x = 101,308,235.41
  5. Step 5: Solve for x
    x = 101,308,235.41/11,621.85
  6. Step 6: Final answer
    x = 8,717.05

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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.