Home / 11,621.97-16,038.42-6,316.79

Finding the Fourth Proportional to 11,621.97, 16,038.42 and 6,316.79

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Solution

The fourth proportional to 11,621.97, 16,038.42 and 6,316.79 is: 8,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.97 : 16,038.42 = 6,316.79 : x
  2. Step 2: Convert to fraction form
    11,621.97/16,038.42 = 6,316.79/x
  3. Step 3: Cross multiply
    11,621.97x = 16,038.42 × 6,316.79
  4. Step 4: Simplify right side
    11,621.97x = 101,311,227.19
  5. Step 5: Solve for x
    x = 101,311,227.19/11,621.97
  6. Step 6: Final answer
    x = 8,717.22

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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.