Home / 15,334.71-21,161.41-8,620.62

Finding the Fourth Proportional to 15,334.71, 21,161.41 and 8,620.62

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Solution

The fourth proportional to 15,334.71, 21,161.41 and 8,620.62 is: 11,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.71 : 21,161.41 = 8,620.62 : x
  2. Step 2: Convert to fraction form
    15,334.71/21,161.41 = 8,620.62/x
  3. Step 3: Cross multiply
    15,334.71x = 21,161.41 × 8,620.62
  4. Step 4: Simplify right side
    15,334.71x = 182,424,474.27
  5. Step 5: Solve for x
    x = 182,424,474.27/15,334.71
  6. Step 6: Final answer
    x = 11,896.18

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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.