Home / 15,334.14-21,161.42-8,620.19

Finding the Fourth Proportional to 15,334.14, 21,161.42 and 8,620.19

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Solution

The fourth proportional to 15,334.14, 21,161.42 and 8,620.19 is: 11,896.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.14 : 21,161.42 = 8,620.19 : x
  2. Step 2: Convert to fraction form
    15,334.14/21,161.42 = 8,620.19/x
  3. Step 3: Cross multiply
    15,334.14x = 21,161.42 × 8,620.19
  4. Step 4: Simplify right side
    15,334.14x = 182,415,423.84
  5. Step 5: Solve for x
    x = 182,415,423.84/15,334.14
  6. Step 6: Final answer
    x = 11,896.03

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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.