Home / 11,621.71-16,042.17-7,151.44

Finding the Fourth Proportional to 11,621.71, 16,042.17 and 7,151.44

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Solution

The fourth proportional to 11,621.71, 16,042.17 and 7,151.44 is: 9,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.71 : 16,042.17 = 7,151.44 : x
  2. Step 2: Convert to fraction form
    11,621.71/16,042.17 = 7,151.44/x
  3. Step 3: Cross multiply
    11,621.71x = 16,042.17 × 7,151.44
  4. Step 4: Simplify right side
    11,621.71x = 114,724,616.22
  5. Step 5: Solve for x
    x = 114,724,616.22/11,621.71
  6. Step 6: Final answer
    x = 9,871.58

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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.