Home / 14,618.34-20,171.75-8,243.51

Finding the Fourth Proportional to 14,618.34, 20,171.75 and 8,243.51

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Solution

The fourth proportional to 14,618.34, 20,171.75 and 8,243.51 is: 11,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.34 : 20,171.75 = 8,243.51 : x
  2. Step 2: Convert to fraction form
    14,618.34/20,171.75 = 8,243.51/x
  3. Step 3: Cross multiply
    14,618.34x = 20,171.75 × 8,243.51
  4. Step 4: Simplify right side
    14,618.34x = 166,285,880.77
  5. Step 5: Solve for x
    x = 166,285,880.77/14,618.34
  6. Step 6: Final answer
    x = 11,375.15

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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.