Home / 11,621.71-16,038.12-6,316.53

Finding the Fourth Proportional to 11,621.71, 16,038.12 and 6,316.53

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Solution

The fourth proportional to 11,621.71, 16,038.12 and 6,316.53 is: 8,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.71 : 16,038.12 = 6,316.53 : x
  2. Step 2: Convert to fraction form
    11,621.71/16,038.12 = 6,316.53/x
  3. Step 3: Cross multiply
    11,621.71x = 16,038.12 × 6,316.53
  4. Step 4: Simplify right side
    11,621.71x = 101,305,229.67
  5. Step 5: Solve for x
    x = 101,305,229.67/11,621.71
  6. Step 6: Final answer
    x = 8,716.89

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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.